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HUHumidity

739 l U.S. 800-323-4340 toll-free, 847-549-7600 (outside the U.S.), www.coleparmer.com Canada 800-363-5900 l India 91-22-6716-2222 l UK 0500-345-300

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Table-of-ContentsWebRegistration

Dial Indicators

Specifications & Ordering Information

ThermohygrometerEasy-to-read dial indicators for both temperature and humidityMonitor conditions of your lab, office, or food storage area with this economical thermohygrometer. Displays in °F and °C. No batteries or external power are required for operation.

35700-10


Thermohygrometer with Large DialLarge 10" dial display allows you to view temperature from a distanceView temperature conditions from a distance with the big 10" diameter thermohygrometer. This indicator features a dual temperature display in °F and °C. No batteries or power required.

35700-20

Thermohygrometer with Glass ThermometerFeatures alcohol-filled thermometerUse this indicator for RH and temperature readings in your lab, office, or computer room. Instrument requires no batteries or power. This indicator features a °F/°C thermometer.


03313-70

Specifications & Ordering InformationResponse time: 1 minute Power: one AA battery (included)Display: analog Dimensions: 93/4" dia x 11/2"D

Mode RH TemperatureRange 0 to 100% –40 to 120°F (–40 to 50°C)

Resolution 0.1% 2°F/1°CAccuracy ±3% of reading ±4°F (±2°C)

AccessoriesKH-09376-01 Replacement batteries, 1.5 V, AA. Pack of 4

EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Mode RH TemperatureRange 25 to 80% –4 to 104°F (–20 to 40°C)

Resolution 1% 2°F/1°C

Accuracy ±5% from 25 to 70%±8% from 71 to 80% ±3.6°F/±2°C

Catalog number Description PriceKH-35700-10 Thermohygrometer

Catalog number Description PriceKH-37803-25 Thermohygrometer wall clock

Mode RH TemperatureRange 25 to 80% –22 to 122°F (–30 to 50°C)Resolution 5% 2°F/1°C

Accuracy ±5% from 25 to 70%±8% from 71 to 80% ±3.6°F/±2°C

Catalog number Description PriceKH-35700-20 Thermohygrometer with large dial

Mode RH TemperatureRange 20 to 99% –4 to 120°F (–20 to 50°C)Resolution 1% 10°F (5°C)

Accuracy ±4% from 68 to 122°F (20 to 50°C), ±5% outside this range ±10°F (±5°C)

Catalog number Description PriceKH-03313-70 Thermohygrometer with glass thermometer

Thermohygrometer Wall ClockClock displays time, humidity, and temperature This attractive silver rim and black face multiparameter wall meter displays time, humidity, and temperature. Easily view time, humidity, or temperature from separate measurement dials. Temperature is displayed in °F and °C.

What’s included: one AA battery.

Response time: 1 minuteDisplay: analog

Dimensions: 5" dia x 11/8"D

37803-25


Dimensions: 103/4" dia x 13/8"D Response time: 1 minuteDisplay: analog

Dimensions: 41/8" dia x 11/16"D

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Dial Indicators

Thermohygrometer with Digital ThermometerSwitch-selectable °F or °C scaleEasily mount this thermohygrometer in your office, laboratory, greenhouse, or food storage environments. This thermohygrometer remains accurate and stable without maintenance or adjustments. Case is constructed of corrosion-resistant ABS plastic.

What’s included: one AA battery, mounting bracket, and screws.

Mode RH TemperatureRange 20 to 100% 0 to 160°F (–18 to 72°C)

Resolution 2% 0.1°F (0.1°C)Accuracy ±4%, 20 to 90%; ±8%, 90 to 100% ±1.8°F (±1.0°C)

Response time: 1 minuteDisplay

RH: analog Temperature: 31/2-digit LCD, 0.50"H

Power: one AA battery (included)Dimensions: 5" dia x 11/8"D


35700-00

Humidity CardCard indicates both the current humidity and the maximum humidity attained!l Non-reversible maximum humidity indicator is perfect

for packaging and shippingl NIST-TraceableEasy-to-read card is ideal for use with bottles, chemicals, plastic bags, electronics, desiccators, and storage containers. Maximum range (highest humidity attained when exposed for 24 hours or more) is 50 to 90% RH—orange dot indicator changes to yellow in increments of 10% RH. Maximum memory range is readable to an accuracy of ±5% RH at 75°F (24°C).

Reversible current humidity (0 to 100% RH) changes color from blue to bright pink in increments of 10% RH; accuracy of ±2.5% RH at 75°F (24°C). Card arrives ready for use—each card is individually sealed in a clear moisture-barrier bag with desiccant to keep the card dry and provide for an extended shelf life.

What’s included: NIST-traceable certificate.


03313-06

Brass Case ThermohygrometersProvide fast, accurate measurements in a visually appealing brass caseChoose an indicator for % RH measurement only; % RH and °F measurements; or % RH, °F, and °C measurements. All models have a durotherm RH sensor that measures relative humidity from 0 to 100% RH. Thermohygrometers feature a bimetallic temperature sensor.

Models 03310-20 and 03310-40 include a test certificate ensuring conformance to stated specifications. All indicators have a solid brass case, a 5" diameter glass face, and predrilled holes for wall mounting.

03310-00

Model 35710-10

Model 35710-00


03310-40

Temperature/Humidity/Process Dataloggersl Compact, rugged housing guarantees operation

in busy or rugged areas!Automatically log up to 16,000 temperature (°F or °C) and humidity (%RH) measurement readings for months, then download data to your computer or printer. Sample from once per 10 seconds to once per 2 hours—built-in clock and calendar track your data in real time. Dataloggers require software 35710-50. Kits include datalogger, software, and cable.

EK-35710-50 Microlab software and 8-ft cable. Set sampling rate; view data graphically; store/export data in spreadsheet format (CD-ROM). Windows® 95/98/2000/NT compatible

Specifications & Ordering InformationPower: 3.6 V lithium battery (included)Dimensions: 1"D x 23/4" dia

35710-00

Catalog number Description PriceKH-35700-00 Thermohygrometer with digital thermometer

EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points KH-09376-01 Replacement batteries, AA.

Catalog number Description Size Qty/pk Price/pkKH-03313-06 NIST-traceable humidity card 4"W x 4"H 6

Catalog number KH-03310-20 KH-03310-00 KH-03310-40Mode %RH %RH, °F %RH, °F/°C

RHRange 0 to 100%

Resolution 1% 2% 2% RHAccuracy ±3% (35 to 95%), ±5% (<35%, >95%)

TempRange — 10 to 170°F 10 to 170°F (–12 to 76°C)

Resolution — 5°F 5°F (2°C)Accuracy — ±1% full-scale ±1% full-scale

Price

Parameters No. of channels Range DisplayTemperature One internal, –22 to 122°F (–30 to 50°C) 2-digit LCD;

Humidity one external 0 to 100% RH 3⁄8"H

Description Dataloggers Datalogger kitsCat. no. Price Cat. no Price

Temperature EK-35710-00 EK-35710-60 Temperature/RH EK-35710-10 EK-35710-62


Dimensions: 6" dia x 11/2"D

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Psychrometers

Sling PsychrometerClassic twirling designThis psychrometer is fast, accurate, and easy to use. Features an environmentally friendly red spirit mercury-free thermometer, ABS construction, and an extra large handle. To operate, simply moisten the wick, twirl the psychrometer for two minutes, and then read the wet and dry bulb temperatures. Use the instructions and conversion chart supplied in order to calculate the relative humidity. (Available in °C only.)

What’s included: two thermometers, one wick, conversion chart, and carrying case.

AccessoriesKH-03322-91 Replacement kit contains one wick and two glass red spirit thermometers EK-17005-00 Calibration service; NIST-traceable

Specifications & Ordering InformationResponse time: 2 minutes Power: hand operatedDisplay: thermometers Dimensions: 13⁄4"W x 81⁄2"H x 1"D

Catalog number KH-03322-90

RHRange 10 to 100% Resolution 2%Accuracy ±3%

TemperatureRange 0 to 50°CResolution 0.1°CAccuracy ±0.3°C

Price

Pocket Sling PsychrometersTake this pocket-sized unit with you anywhere!To operate psychrometer, withdraw thermometer halfway out of case, then moisten wick. Holding the case as a handle, swing the psychrometer for two minutes. Read wet and dry bulb temperatures, then reinsert thermometer slide into case. The slide and case form a slide rule for calculating RH.

Choose °F or °C models. The °F models are available with either mercury- or spirit-filled thermometers—use spirit-filled model in mercury-free environments.

AccessoriesKH-03322-50 Replacement glass thermometers, 20 to 120°F, mercury-filled. Pack of twoKH-03322-60 Replacement glass thermometers, –5 to 50°C, mercury-filled. Pack of twoKH-03322-70 Replacement glass thermometers, 20 to 120°F, spirit-filled. Pack of twoKH-03322-82 Replacement wicks, 200-mm. Pack of six

03322-00 A low-cost

instrument for wet bulb, dry bulb,

and RH

Specifications & Ordering InformationCatalog number KH-03322-00 KH-03322-10 KH-03322-20

Description °F mercury filled °C mercury filled °F spirit filled

RHRange 10 to 100%Resolution 2%Accuracy ±3%

TempRange 20 to 120°F –5 to 50°C 20 to 120°FResolution 1°F 0.5°C 1°FAccuracy ±1°F ±0.5°C ±1°F

Dimensions 13⁄8"W x 81⁄4"H x 5⁄8"D (when closed)Price

03322-90

Humidity Calculator and Mason HygrometerCalculate relative humidity with wet and dry bulb temperaturesHumidity calculator (03311-00) matches wet and dry bulb temperatures on a slide scale for humidity values. Calculator features recommended humidities needed to achieve ideal conditions for industry processes.

Mason hygrometer (03311-02) features two red spirit filled thermometers contained within a sturdy plastic case. Included chart converts wet and dry bulb temperatures to humidity values. Dual temperature scales range from 0 to 120°F (–15 to 50°C).


03311-00

Catalog number Description Dimensions PriceKH-03311-00 Humidity slide calculator 7"W x 2"H x 1⁄16"D KH-03311-02 Mason hygrometer 23⁄4"W x 121⁄4"H x 3⁄4"D

03311-02

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Psychrometers/Digital Indicators

Specifications & Ordering InformationThermometer type: two 87/8" mercury-filled glass thermometersPower: three D batteries (sold separately below)Dimensions: 10"W x 41/2"H x 2"D

PsychrometersMeter displays psychrometric chart

03312-20

Psychrometers measure relative humidity without agitation. To use, turn on the fan and let it run for 11/2 to 2 minutes. Then, subtract wet bulb reading from dry bulb reading, and use the included slide rule and tables to calculate the RH. Fan is powered by three size D batteries (order separately below).

What’s included: one 2-oz water bottle, psychrometric slide rule, tables, chart, extra lamp, extra wicking material, and carrying case.

Thermohygrometer with AlarmAlarm actuates when parameter limits are exceededThis monitor displays current and min/max measurements of temperature or humidity. Program temperature and humidity limits to activate an audible alarm when parameters are exceeded—perfect for parameter specific monitoring. Other features include selectable °F/°C and memory clear function.

What’s included: one AAA battery.

Response time: 2 minutesDisplay: 3-digit LCD

Power: one AAA battery (included)Dimensions: 41/8"W x 23/4"H x 3/4"D


90081-04

Mini ThermohygrometerCompact design allows monitoring in small spacesMonitor temperature and humidity conditions in desiccators, incubators and environmental chambers. Simultaneously display current temperature and humidity conditions or recall temperature and humidity min/max measurements. Set min/max function to reset every 24 hours or manually reset when appropriate. LCD displays current conditions as “comfort", “wet”, or “dry.”

What’s included: one LR44 battery.

Response time: 2 minutesDisplay: 4-digit LCD

Power: one LR44 battery (included)Dimensions: 17/8"W x 21/4"H x 3/8"D


90081-02

Catalog number KH-03312-20 KH-03312-40

RHRange 10 to 100%Resolution 1%Accuracy ±3% full-scale

TempRange 10 to 120°F –15 to 45°CResolution 1°F 0.5°CAccuracy ±0.3°F ±0.2°C

Price

KH-09376-03 Batteries; D. Pack of fourKH-03312-25 Replacement glass thermometers for model 03312-20 KH-03312-45 Replacement glass thermometers for model 03312-40

Catalog number Description PriceKH-90081-04 Thermohygrometer with alarm

Mode RH TemperatureRange 20 to 99% –4 to 158°F (–20 to 70°C)Resolution 1% 0.1°F or C

Accuracy ±6% from 20 to 60%; ±8% from 60 to 99%

±2°F (1°C) from –4 to 122°F (–20 to 50°C); ±3°F (1.5°C) above 122°F (50°C)

Mode RH TemperatureRange 20 to 99% 23 to 122°F (–10 to 50°C)Resolution 1% 1°F or C

Accuracy ±6% from 30 to 60% at 25°C; ±8% from 60 to 99% at 25°C ±2°F (1°C)

Catalog number Description PriceKH-90081-02 Mini thermohygrometer

Thermohygrometer with Remote ProbeTemperature/RH sensor with 7-ft cable allows remote readingsl Alarm sounds when user-selected temperature

or RH parameters are exceeded

Display shows current, min/max temperatures or RH readings. Toggle between temperature and RH displays with the press of a button. Other features include selectable °F/°C display and memory clear. Monitor has built in stand, or can be wall mounted.

What’s included: remote temperature/RH sensor with 7-ft cable, and one AAA battery.

Response time: 2 minutesDisplay: multi-line LCD



90081-00

Mode RH TemperatureRange 20 to 99% –14 to 122°F (–10 to 50°C)Resolution 1% 0.1°F or °CAccuracy ±4% full scale ±2°F (±1°C)

Catalog number Description PriceKH-90081-00 Thermohygrometer with remote probe

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Thermohygrometer Clock

37802-00

Specifications & Ordering InformationResponse time: approx. 5 minutesDisplay

RH: 2-digits Temperature: 21/2-digits


Simultaneously displays time, humidity, and temperaturePlace unit on your desk or mount on the wall. Push min/max button to view minimum and maximum measurements. Clock displays 12-hour time with a.m./p.m. indicator when in °F mode, and 24-hour time when in °C mode.

What’s included: one AAA battery.

Mode RH TemperatureRange 10 to 99% 14 to 140°F (–10 to 60°C)Resolution 1% 0.1°F (0.1°C)Accuracy ±6% from 25 to 80% ±3°F (±2°C)

Catalog number Description PriceKH-37802-00 Thermohygrometer clock

KH-09376-00 Replacement batteries; 1.5V, AAA. Pack of 12EK-17030-50 Humidity certificate of accuracy

Specifications & Ordering InformationResponse time: 30 secondsTransmission interval: 2 minutesFrequency band: 434 MHzDisplay

Receiver: dual-line, 4-digit LCD Remote sensor: dual-line, 2-digit LCD

Power Receiver: two AA batteries Remote sensor: two AA batteries (batteries not included)

Dimensions Receiver: 5"W x 31/2"H x 11/4"D Remote sensor: 31/4"W x 3"H x 1"D

Wireless ThermohygrometerMonitor temperature and humidity from up to 100 feet awayThis wireless kit displays temperature and humidity min/max readings for both the receiver and remote sensor. LCD indicates condition trends with increasing, decreasing or steady arrows. The receiver accepts signals from up to three remote sensors. Detachable cable probe allows for liquid measurements. Order batteries separately below.

What’s included: one remote sensor and detachable cable probe.

37100-33

Remote sensor (included)

Mode RH TemperatureRange 20 to 99% –4 to 140°F (–20 to 60°C)Resolution 1% 0.1°F/°CAccuracy ±4% ±2°F (1°C)

Catalog number Description PriceKH-37100-33 Wireless thermohygrometer

KH-37100-83 Additional remote sensor KH-09376-02 Replacement batteries; 1.5 V, AA. Pack of four

Digital Thermohygrometer with Dew Point and Alarm

Specifications & Ordering InformationResponse time: 1 minuteDisplay: triple LCD

Power: one AAA battery (included)Dimensions: 4"W x 4"H x ¾"D

Catalog number Description PriceKH-37803-26* Thermohygrometer with dew point and alarm

*Meter takes the information gathered from the sensors and calculates dew point.

RHRange 10 to 99%Resolution 1%Accuracy ±4% of reading

TemperatureRange 14 to 140°F (–10 to 60°C)Resolution 0.1°F (0.1°C)Accuracy ±1.8°F (±1°C)

Dew point Included*

KH-37803-19 Calibration salt, 33% RH KH-37803-20 Calibration salt, 75% RH EK-17030-50 Humidity certificate of accuracy KH-09376-00 Replacement batteries; 1.5V, AAA. Pack of 12

37803-26

Audible/visual alarm indicates if humidity exceeds set pointThe meter warns users of environmental conditions that are out of a desired range. Features include a super large, triple display for relative humidity, temperature, and dew point; min/max with reset function; built-in stand for sitting on a desk; and hardware for mounting on a wall. The humidity/temperature probe is connected to an 18"L cable and can be clipped onto the meter. Calibration adjustments allow in-house calibration using optional standards.

What’s included: sensor probe, mounting bracket, and one AAA battery.

Digital Indicators

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Digital Indicators

D Digital ThermohygrometersMount these thermohygrometers on a wall or flip out the stand to use them on your desktop.

Choose either a °F or a °C model. Use two AAA batteries (included) for temperature and humidity readout.

Digital ThermohygrometersMonitor temperature and humidity conditions in labs, offices, and storage areas

03313-85

C Thermohygrometer with Minimum/Maximum FunctionThermohygrometer displays temperature compensated relative humidity in % RH, and temperature in °F or °C. Stores minimum and maximum RH and temperature readings—just press the front-panel MIN and MAX buttons to read stored values. Press the RESET button to continue displaying current RH and temperature conditions.

Thermohygrometer features an integral stand for easy desktop viewing and a wall mounting bracket. Includes NIST certificate.

03313-86

37101-00

37100-06

A ThermohygrometerThis temperature/humidity indicator shows the exact air conditions in labs, hoods, stock rooms, and more. LCD also indicates “comfort,” “humid,” or “dry” conditions.

ABS plastic case is chemically resistant and shock-resistant. Thermohygrometer requires no adjustment or maintenance. Mount on the wall or place on a surface with included bench stand. Includes NIST certificate.

B Jumbo Display ThermohygrometerThis thermohygrometer is perfect for both indoor and outdoor applications. Large, 11/8" display can be read as far as 35 feet away!

Thermohygrometer includes a submersible temperature sensor on a 10-ft cable and one AAA battery. Unit features ABS plastic housing. Wall-mount the thermohygrometer or use the flip-open stand. Includes NIST certificate.


EK-17030-50 Humidity certificate of accuracy documents that the humidity instrument is performing to specifications

Key letter A B C D D

Catalog number KH-03313-85 KH-03313-86 KH-37101-00 KH-37100-06 KH-37100-16

RH

Range 25 to 95% 25 to 95% 25 to 95%† 20 to 95%Resolution 1% 1% 1% 1% from 30 to 83%; max 3% for remainder of range

Accuracy ±5% from 40 to 80% ±7% for remaining range

±2% at 60%,±4% for remaining range

±5% from 40 to 80%,7% for remaining range

±10% from 20 to 34%;±5% from 35 to 75%;±8% from 76 to 95%

Temp

Range 32 to 122°F (0.0 to 50°C) 32 to 122°F (0 to 50°C)* 32 to 122°F (0 to 50°C) –58 to 158°F –50 to 70°CResolution 0.1°F (0.1°C) 1°F (1°C) 1°F (1°C) 0.1°F 0.1°C

Accuracy ±1.8°F(±1°C)

2°F(1°C)

±2°F (±1°C) from 32 to 104°F,±4°F (±2°C) for remaining range

±3.6°F from –58 to 29°F;±1.8°F from 30 to 104°F±3.6°F from 105 to122°F±5.4°F from 123 to 158°F

±2°C from –50 to –1°C±1°C from 0 to 40°C±2°C from 41 to 50°C±3°C from 51 to 70°C

Response time 30 seconds to 3.5 minutes Dependent upon airflow 8 seconds Maximum 1 minute for both temperature and humidity

Display RH: 2-digit LCD, 5⁄8"HTemp: 31⁄2-digit LCD, 5⁄8"H

RH: 2-digit LCD, 11⁄8"HTemp: 3-digit LCD, 11⁄8"H

RH: 2-digit LCD, 5⁄8 "HTemp: 21⁄2-digit LCD, 5⁄8"H

RH: 2-digit LCD, 3⁄4"HTemp: 31⁄2-digit LCD, 3⁄4"H

Power Two AA batteries(included)

One AAA battery(included)

Two AAA batteries(included) Two AAA batteries (included)

Dimensions 31⁄2"W x 5 "H x 1"D 4"W x 21⁄2"H x 1⁄2"D 25⁄8"W x 33⁄4 "H x 5⁄8"D 53⁄8"W x 21⁄2"H x 5⁄8"DPrice Repl. batteries KH-09376-01 KH-09376-00 KH-09376-00 KH-09376-00 KH-09376-00Price

*Measuring range of only the unit. Measuring range of probe is –58 to 158°F (–50 to 70°C). †RH range at temperatures from 59 to 104°F.

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Digital Indicators

Humidity/Temperature Chart RecorderIdeal for monitoring controlled environments such as food processing, cleanrooms, and storage areasl Stores up to 49,000 readings with date and time l Adjustable stand allows for wall mounting or desktop placementl Detachable probe extends up to 3 feet for use in closed environmentsPaperless chart recorder provides simultaneous digital and graphical display of relative humidity and temperature. The display also shows dew point, date and time, and min/max measurements. The update time can be selected from 0.1 minute to 33 hours. Stores up to 49,000 complete time- and date-stamped reading sets, which can be recalled on the graphical display or downloaded onto a PC with the included RS-232 cable and software. The user can set audible and visual alarms with high and low limits for humidity and temperature. Use optional relay 37803-28 to activate an external warning device. The control panel can swivel to act as a desk stand or mount to a wall.

What's included: detachable probe with 3-ft cable, RS-232 cable, software, 120 VAC adapter, and three AA batteries.

AccessoriesKH-37803-28 Alarm relay. Use to activate an external warning device

Specifications & Ordering InformationResponse time: 1 minute Power: three AA batteries or 120 VAC adapter (included)Display: dual LCD graphical display Dimensions: 5"W x 7 3⁄4"H x 1"D

Mode RH TemperatureRange 10 to 95% 14 to 140°F (–10 to 60°C)

Resolution 1% 0.1°F (0.1°C)Accuracy ±3% of reading ±1.8°F (±1°C)


Panel-Mount Humidity MonitorsMonitor humidity measurements in a panel mount designMeasure humidity levels from 500 to 1000 feet away with your choice of three sensors sold separately below. Wall mount sensor (37406-50) features an off-white vented case for indoor use up to 1000 feet away. Duct-mount sensor (37406-52) features a filtered sensor element specifically for ductwork up to 500 feet away. Outdoor sensor (37406-54) features a water-resistant enclosure for surface mounting up to 500 feet away.

Humidity IndicatorConvenient snap-in, panel-mount installation allows accurate monitoring of humidity levels. The scratch-resistant lens provides protection in the most demanding environments. Indicator fits into a 3.1"W x 1.35"H panel cut out.

Humidity AlarmThis humidity alarm features a 1-amp relay output and a 24 VAC alarm output to actuate a status indicator. Audible and visual alarms actuate when set points are exceeded. Program high and low alarm set points, alarm delay (either 0 or 45 minute delay), manual or auto alarm reset, and alarm silencer (no alarm, 5 or 45 minute silencer). Alarm stores min and max humidity levels until reset. Unit designed to fit into a 2" x 4" junction box.

Humidity ControllersThese humidity controllers feature SPDT relay(s) rated at 4 amps, programmable set points, differentials, relay status LEDs, and field calibration mode. Indicator fits into a 3.1"W x 1.35"H panel cut out.

Indicator 37406-00

Alarm 37406-20

Controller 37406-10

Range: 10 to 95% RHResolution: 1% RH

Accuracy: ±3% RHDisplay: 2-digit LED, 9/16"H

Catalog number Relays Power Dimensions PriceHumidity indicator

KH-37406-00 — 24 VAC 3"W x 11⁄3"H x 21⁄4"D Humidity alarm

KH-37406-20 One 24 VAC; 9 V battery back-up (not included) 21⁄2"W x 41⁄4"H x 1"D Humidity controller

KH-37406-10 One 24 VAC 3"W x 11⁄3"H x 21⁄4"D

KH-37406-50 Wall-mount humidity sensorKH-37406-52 Duct-mount humidity sensorKH-37406-54 Outdoor humidity sensor

Catalog number Description Price

KH-37803-27 Humidity/temperature chart recorder

37803-27

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Thermohygrometer Pens

Thermohygrometer PenPocket size with quick and reliable measurementsPen displays relative humidity and temperature simultaneously. Min/max function displays and holds the maximum humidity and temperature values since power-up in memory; simply press the clear button to reset. Features an on/off button and selectable °F/°C temperature mode.

What’s included: one battery and pocket clip.

AccessoriesEK-17030-50 Humidity certificate of accuracy

Specifications & Ordering InformationResponse time: 8 seconds Power: one CR2032 lithium battery (included) Display: LCD Dimensions: 1"W x 6"H x 3⁄4"D

Digital Thermohygrometer Pen with CalibrationBuilt-in self calibration utility with optional RH calibration bottlesPen displays relative humidity and temperature simultaneously on a large LCD. Features include a choice of readings in °F and °C, min/max recall, and data hold. Meter can be calibrated in the field using optional calibration kit 37803-17, which contains 33% and 75% humidity standards.

What’s included: one battery and pocket clip.

AccessoriesKH-37803-17 Calibration kit and carrying case KH-09376-17 Replacement batteries, 3 V CR2032. Pack of 6


Digital Thermohygrometer Pen with Dew Point and Heat IndexIdeal for monitoring environmental conditions within the workplacel Compact size allows for convenient storageMeter features min/max memory with rest, data hold, °F/°C reading, and auto shutoff with low-battery indicator. A large LCD displays RH, temperature, dew point, and heat index readings. Audible alarm and visible danger icon indicate when the heat index is at a dangerous level.

What’s included: pocket clip and one lithium battery.

AccessoriesEK-17030-50 Humidity certificate of accuracy

Specifications & Ordering InformationResponse time: 60 seconds Power: one 3 V, CR2032 lithium battery (included)Display: dual-line, 3 -digit LCD (2 displays) Dimensions: 11⁄2"W x 63⁄4"H x 1"DHeat index range: 32 to 115°F (0 to 46°C)


KH-37803-14 Humidity/temperature pen Mode RH TemperatureRange 20 to 90% 14 to 122°F (–10 to 50°C)Resolution 0.10% 0.1°F (0.1°C)Accuracy ±5% of reading ±2°F (±1°C)

Cat. no. Description Price

KH-37803-16 Digital thermohygrometer pen with calibration


KH-37401-01 Digital thermohygrometer pen with dew point and heat index

Mode RH Temperature Dew point Range 0 to 100% –4 to 122°F (–20 to 50°C) –22 to 122°F (–30 to 50°C)Resolution 0.10% 0.1°F (0.1°C) 0.1°F (0.1°C)Accuracy ±5% full-scale ±1.8°F (±1°C) ±3% full-scale

Response time: 8 seconds Power: one CR2032 lithium battery (included)Display: dual-line, 3-digit LCD (2 displays) Dimensions: 53⁄4"W x 1"H x 13⁄16"D

Mode RH TemperatureRange 10 to 90% 32 to 122°F (0 to 50°C)Resolution 0.10% 0.1° F (0.1°C)Accuracy ±5% of reading ±1.8°F (±1.0°C)

37803-14

37803-16

37401-01

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37461–00

Thermohygrometer with CalibrationOptional thermistor probe lets you calculate T1–T2 differentialCompact meter displays relative humidity and temperature simultaneously, along with dew point or wet bulb or probe temperature on a large LCD. Features include a choice of readings in °F or °C, min/max, data hold, and auto power off. Unique sensor cap closes to protect the sensor during storage. Advanced features include the calculation of T1-T2 temperature differential with external temperature probe 37803-18 (sold separately). Meter can be calibrated in the field using optional RH calibration standard salts. Order meter only or the complete thermohygrometer kit.

What’s included: two AAA batteries. Kit 37803-11 also includes meter 37803-10, temperature probe 37803-18, RH calibration standard salts 37803-19/-20, and carrying case.

KH-37803-18 Thermistor temperature probe KH-37803-19 Calibration salt, 33% RH KH-37803-20 Calibration salt, 75% RH KH-09376-00 Replacement batteries, AAA. Pack of 12


Superheat Thermohygrometer with Calibration

RH Range 10 to 90%Resolution 0.10%Accuracy ±3% of reading

TemperatureRange –4 to 122°F (–20 to 50°C)Resolution 0.1°F (0.1°C)Accuracy ±1.8°F (±1.0°C)

Dew point Included*Wet bulb Included*

KH-37803-21 Thermocouple temperature probe, type K KH-37803-22 Calibration salt, 33% RH KH-37803-23 Calibration salt, 75% RH KH-37803-24 RS-232 cable KH-09376-00 Replacement batteries, AAA. Pack of 12

37461-00

Humidity SticksIdeal for quick monitoring in hard-to-reach locationsl Head swivels 180°—allows easy

viewing at any angleThese humidity sticks are small enough to fit in your pocket. They feature a single button to switch from temperature, humidity and dew point or wet bulb. The water-resistant sensor protects from condensation, and a sensor cap rotates to protect from damage. Auto-off preserves battery life.

What’s included: multi-purpose clip, duct holder, and battery.

Specifications & Ordering InformationResponse time: 15 secondsDisplay: 31/2-digit LCD, 13/8"H

Power: 3 V battery (included)Probe dimensions: 45/16"L x 15/32" dia

Response time: 8 secondsDisplay: triple LCD

Power: two AAA batteries (included)Dimensions: 2"W x 7"H x 1"D

RH Range 10 to 90%Resolution 0.10%Accuracy ±3% of reading



Catalog number Description PriceKH-37803-10 Thermohygrometer KH-37803-11 Thermohygrometer kit


RHRange 5.0 to 95.0% 0 to 100%Resolution 0.1%Accuracy ±3% ±2%

TemperatureRange –4 to 160°F (–20 to 70°C)Resolution 0.1°F (0.1°C)Accuracy ±0.9°F (±0.5°C) ±0.5°F (±.3°C)

Dew pointRange –5 to 140°F (–20 to 70°C) —Resolution 0.1°F/C —Accuracy ±1°F/C† —

Wet bulbRange — –5 to 140°F (–20 to 70°C)Resolution — 0.1°F/°CAccuracy — ±1°F/°C†

Price †Accuracy at 20 to 85% RH.

EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Catalog number Description PriceKH-37803-12 Superheat thermohygrometer KH-37803-13 Superheat thermohygrometer kit

Features dual type K external temperature probe inputsl Datalogging capacity stores up to 99 data recordsAdvanced Superheat feature calculates the differential temperature measurements between T1–T2, or air–T1, or dew point–T1. Compact design is ideal for field applications—it displays relative humidity and temperature simultaneously along with dew point or wet bulb or probe temperature on a large triple display with backlighting. Features include a choice of readings in °F or °C, min/max, average function, data hold, RS-232 interface, datalogger, real-time clock, and auto power off. Unique sensor cap closes to protect the sensor during storage. Meter can be calibrated in the field using optional RH calibration standard salts. Order meter only or the complete thermohygrometer kit.

What’s included: two type K temperature probes and four AAA batteries. Kit 37803-13 also includes meter 37803-12, two type K temperature probes 37803-21, RH calibration standard salts 37803-22/-23, RS-232 cable 37803-24, and carrying case.


37803-12 37803-13

37803-10

37803-11

*Meter takes the information gathered from the sensors and calculates dew point and wet bulb.


180°

Digital Thermohygrometers

HU Humidity


748



Thermohygrometer with Infrared ThermometerThree tools in one—measure temperature, humidity, and infrared temperaturel Laser pointer improves infrared aim and accuracyThermohygrometer simultaneously displays humidity and probe or infrared temperature. For high temperature applications or measurements in hard-to-reach areas, use the infrared thermometer. The meter has a low-light backlit display and a low battery indicator, with an auto off function. Features switchable ºF/ºC units, separate MAX and HOLD buttons for temp/humidity and infrared measurements, and out-of-range indicators.

What’s included: protective holster, built-in stand, and one 9 V battery.

Specifications & Ordering InformationResponse time: 8 secondsEmissivity: 0.95Distance-to-target ratio: 8:1Display: dual-line LCD

Power: one 9 V battery (included)Dimensions

Meter: 3"W x 6"H x 11/2"D Probe: 61/2"L x 1/2" dia

Compact Thermohygrometer with Infrared ThermometerMonitor relative humidity, temperature, wet bulb, and dew pointl Meter can be calibrated in the field using optional salt standards

AccessoriesKH-37803-19 Calibration salt, 33% RH KH-37803-20 Calibration salt, 75% RH KH-37803-31 RS-232 cable EK-17030-50 Calibration service; certificate of accuracy KH-09376-00 Replacement batteries, AAA. Pack of 12


Mode RH Temperature Infrared temperature

Range 35 to 95% –4 to 140°F(–20 to 60°C) –58 to 932°F (–50 to 500°C)

Resolution 0.1% 0.1°F/C 0.1° from –58 to 199°F (–50 to 93°C);1° from 200 to 932°F (94 to 500°C)

Accuracy ±5% at 77°F ±2°F (±1.8°C) ±2%, ±2°F (1.8°C)

Catalog number Description PriceKH-37803-02 Thermohygrometer with IR thermometer

Response time: 8 secondsDisplay: triple LCD, backlit

Power: four AAA batteries (included)Dimensions: 23⁄4"W x 63⁄4"H x 17⁄8"D

RH Range 0 to 100%Resolution 0.10%Accuracy ±3% from 10 to 90% RH


IR temperatureRange –40 to 932°F (–40 to 500°C)Resolution 0.1°F (0.1°C)Accuracy ±1.8°F (±1.0°C)



KH-37803-29 Compact thermohygrometer with infrared thermometer

KH-37803-30 Complete thermohygrometer kit with infrared thermometer

Thermohygrometer simultaneously displays relative humidity, surface temperature and air temperature, dew point, or wet bulb on a triple LCD with backlighting. IR thermometer features a built-in laser pointer, adjustable emissivity of 0.3 to 1.0, and a spot/distance ratio of 8:1. The meter calculates the temperature difference between IR surface temperature and dew point. Other features include data hold, programmable auto power off, low-battery indicator, over/under range alert, and a retractable probe that protects the humidity sensors when not in use. Optional RS-232 cable (37803-31) allows downloads onto PC. Order meter only or the complete thermohygrometer kit.

What’s included: four AAA batteries and carrying case. Kit 37803-30 also includes meter 37803-29, RH calibration standard salts 37803-32/-33, and RS-232 cable 37803-31.

37803-29

37803-30

37803-02


HUHumidity


749


Precision Thermohygrometer with Dew Point and Wet BulbMeasures relative humidity with ±2% accuracy

AccessoriesEK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Specifications & Ordering InformationResponse time: 3 seconds Power: one 9 V battery (included)Display: dual-line LCD, backlit Dimensions: 23⁄4"W x 105⁄8"H x 1"D

RH

Range 0 to 100%Resolution 0.10%

Accuracy ±2% 20 to 90% RH, ±3% 10 to 20% and 90 to 95%, ±4% rest of range

TemperatureRange 4 to 140°F (20 to 60°C)Resolution 0.1°F (0.1°C)Accuracy <±1.8°F (±1°C)



KH-37803-33 Precision thermohygrometer with dew point and wet bulb


37803-33

971 ThermohygrometerErgonomically designed meter with dataloggerl Calculates dew point and wet bulbl Use as part of regular HVAC maintenanceThe Fluke 971 meter is built for field use with an impact-resistant housing, rugged holster, convenient belt clip, and bright backlit display. Includes °F/°C selection, min/max reading, hold feature, averaging function, and 99-record datalogging capacity. A large LCD simultaneously displays RH and temperature readings, along with calculating dew point and wet bulb.

What’s included: four AAA batteriesAccessoriesEK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Specifications & Ordering InformationResponse time: 500 msDisplay: dual-line, 3-digit LCD, backlit

(2 displays)

Power: four AAA batteries (included)Dimensions: 21⁄2"W x 71⁄2"H x 11⁄4"D

Catalog number Description PriceKH-37851-20 Fluke 971 thermohygrometer


RH Range 5.0 to 95.0% Resolution 0.10%Accuracy ±2.5% from 10 to 90%; ±10 for remaining range

Temperature

Range –4 to 1140°F (–20 to 60°C)Resolution 0.2°F (0.1°C)

Accuracy ±1.0°F from 32 to 113°F, ±2.0°F for remaining range (±0.5°C from 0 to 45°C, ±1.0°C for remaining range)


37851-20

Compact ThermohygrometerSlim design with built-in sensor for one-handed operation

AccessoriesEK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Cat. no. Description PriceKH-37803-32 Compact thermohygrometer

Specifications & Ordering InformationResponse time: 3 sec, sample Power: one 9 V

rate 2.5 times/sec battery (included)Display: 31⁄2-digit LCD Dimensions: 23⁄4"W x 105⁄8"H x 1"D

37803-32

Mode RH TemperatureRange 10 to 95% 4 to 140°F (20 to 60°C)Resolution 0.10% 0.1°F (0.1°C)Accuracy ±3% from 30 to 95% RH ±1.5°F (±0.8°C)

Precision capacitance humidity sensor offers fast response. Slim design with rubberized sides for better grip and easy, one-handed operation. The dual LCD provides simultaneous display of humidity and temperature, or humidity and dew point, or humidity and wet bulb. Advanced features include data hold, min/max readings, low-battery indication, and auto power off.

What’s included: one 9 V battery and carrying case.

Meter utilizes a thin film capacitance sensor for humidity and a semiconductor sensor for temperature measurements. Compact design is ideal for field applications, displays relative humidity or temperature on large LCD. Features data hold, °F/°C selectable reading, and analog output signal (10 mV/1% RH or 1°F/°C) for use with a chart recorder. Fast response time of less than 3 seconds, with a sampling rate of 2.5 times per second.

What’s included: one 9 V battery and carrying case.


HU Humidity


750



Compact Waterproof Digital ThermohygrometersIdeal for use in harsh environments including the food industryl IP67-rated housing and keypadl IP40-rated humidity sensorl Thermistor temperature probel Compact size allows for convenient storageThese meters feature a robust impact-resistant ABS housing, °F/°C selection, user-defined measuring rate of 1 to 15 seconds, battery life indicator, and auto shutoff. A large LCD simultaneously displays RH and temperature readings. Model 37851-11 also includes a remote sensor probe, wet bulb (calculated), dew point (calculated), along with min/max and hold buttons.

What’s included: one lithium battery.Specifications & Ordering Information

Compact Series Multi-Mode Thermohygrometer with Wireless CapabilityIdeal for use in the HVAC, IAQ, and environmental industriesl The probe is able to get in to hard-to-reach areas with the optional

extension cable or wireless handlel Monitors relative humidity, temperature, wet bulb, and dew pointThis compact, easy-to-use thermohygrometer has three modes of operation: 1) RH probe fixed to the meter (standard); 2) RH probe fixed to the end of the optional extension cable 37803-35; and 3) RH probe attached to the optional wireless upgrade kit 37486-02. The supplied removable RH probe can be used in all three modes, and provides an exceptional ±2.5% RH accuracy. The meter features min/max/hold, a large two-line backlit display, and basic status such as battery life. The display can be easily switched between humidity, wet bulb, and dew point at the touch of a button.

In addition to the standard configuration, this meter can be easily upgraded anytime to wireless. The optional wireless upgrade kit 37486-02 accepts either the standard RH probe (supplied) or the optional type K thermocouple adapter 37486-03 providing a wire-free solution. Wireless measurements can be taken up to 60 feet away from the meter—so large HVAC systems, laboratories, warehouses, or offices can be monitored with ease.

The optional carrying case 10323-12 protects the instrument from moisture, dirt, and impact, yet allows easy operation and viewing of the display.

What’s included: plug-in humidity probe head, calibration documentation, and one 9 V battery.

AccessoriesKH-37803-35 Relative humidity extension cable KH-10323-12 Protective carrying case KH-37486-02 Wireless upgrade kit includes one wireless handle and one wireless module. Can be used with any wireless probe head. KH-37486-03 Wireless thermocouple adapter head, accepts any type K mini-thermocouple. Must be used with wireless upgrade kit 37486-02. KH-37486-05 Wireless RH probe head. Must be used with wireless upgrade kit 37486-02. (Replacement for standard RH probe.) EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Response time: 8 seconds Power: one 9 V battery (included)Display: triple LCD, backlit Dimensions: 4"W x 11"H x 1 3⁄4"D

Catalog number KH-37851-10 KH-37851-11Probe type Internal probe External probe

RH Range 5.0 to 95.0% 0 to 100%Resolution 0.10% 0.10%Accuracy ±3% ±2%

TemperatureRange –4 to 160°F (–20 to 70°C) –4 to 160°F (–20 to 70°C)Resolution 0.1°F (0.1°C) 0.1°F (0.1°C)Accuracy ±0.9°F (±0.5°C) ±0.5°F (±.3°C)

Dew point — Included*Wet bulb — Included*Price


Response time: 1 to 15 secondsDisplay: 3-digit LCD (2 displays)Power: one 3 V, 5-year lithium battery (included)

Dimensions Housing: 21⁄4"W x 41⁄2"H x 3⁄4"D External probe: 6"L x 3⁄4"dia External cable: 41⁄2"L

37851-10

37851-11

RH Range 0 to 100%Resolution 0.10%Accuracy ±2.5% RH

TemperatureRange 14 to 140°F (–10 to 60°C)Resolution 0.1°F (0.1°C)Accuracy ±0.9°F (±0.5°C)


Catalog number Description PriceKH-37803-34 Multi-mode thermohygrometer with wireless capability


37803-34

37846-05

Specs & Ordering Information

HUHumidity


751



Thermohygrometer with Dew Point

37003-10

Simultaneously display temperature, humidity, and dew pointl IP54 rating provides splash- and

rust-resistant protectionThis thermohygrometer offers the unique feature of displaying temperature, humidity, and dew point simultaneously—eliminates the need to switch screen displays. The rugged design allows measurements in industrial applications, and offers splash- and dust-resistant protection.

Meter features selectable °F/°C, hold, single- or dual-point temperature and humidity calibration, low-battery indicator, and built-in tilt stand. Order additional probe at right for convenient replacement. For field calibration, order calibration kit 37450-10 at right.

What’s included: two AA batteries.

Response time: 4 secondsDisplay: dual-line, 4-digit LCDPower: two AA batteries (included)

Dimensions Meter: 3"W x 6"H x 1"D Probe: 10"L x 1⁄2" dia


Catalog number Description PriceKH-37003-10 Thermohygrometer with dew point

KH-37003-62 Replacement probeKH-37450-10 Calibration kit, includes 11.3% and 75.3% saltsKH-09376-01 Replacement batteries, AA.EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Mode RH Temperature Dew point

Range 0 to 100% –40 to 140°F (–40 to 60°C)

–130 to 140°F(–90 to 60°C)

Resolution 0.1% 0.1°F/°C 0.1°F/°CAccuracy ±2% ±1°F (±0.5°C) —

Mode RH Temperature Dew pointRange 0 to 100% –40 to 140°F (–40 to 60°C) –130 to 140°F (–90 to 60°C) Resolution 0.10% 0.1°F/°C 0.1°F/CAccuracy ±2% ±1°F (±0.5°C) —

Catalog number Description PriceKH-37003-02 Logging thermohygrometer with dew point

Simultaneously display temperature, humidity, and dew pointlIP54 rating provides splash- and

dust-resistant designlLog up to 1000 data points with time

and date stamp This industrial-grade thermohygrometer offers the unique feature of displaying temperature, humidity, and dew point simultaneously—eliminating the need to switch screen displays. The impact- resistant, IP54-rated design protects the meter from dust, particles, and water. For field calibration, order calibration kit 37450-10 (sold separately at right).

Provides the same features as 37003-10 shown at top of page plus logging capabilities, v adjustable filter rate (stabilize fluctuating readings), min/max, and Recall functions.

Log up to 1000 data points with time and date stamp for later analysis. Program logging interval between 1 second to 60 minutes. Download stored data to a PC via RS-232 interface or transmit data to printer 10374-50 via infrared signal output(each sold separately at right).

What’s included: two AA batteries.

37003-02


Response time: 4 secondsOutput: RS-232 and infrared Memory capacity: 1000 data points Display: dual-line, 4-digit LCD

Power: two AA batteries (included)Dimensions

Meter: 3"W x 6"H x 1"D Probe: 10"L x 1⁄2" dia

AccessoriesKH-37450-10 Calibration kit, includes 11.3% and 75.3% saltsKH-91100-85 RS-232 interfaceKH-37486-12 Infrared printer. Includes one roll of paper and four AA batteriesKH-92600-45 Replacement printer paper. Pack of 6 rollsKH-17030-20 Calibration service; NIST-traceable certificateKH-37003-62 Replacement probe

Thermohygrometer with Dew Point and Data Logging

Call us now to place your order!

847-549-7600

HU Humidity


752



Response time: 3 seconds to move 60% of scale

Memory capacity: 16 data pointsDisplay: 4-digit LCD, 7/8"H

Power: one 9 V battery (included) Dimensions: 23/4"W x 71/2"H x 13/8"D

∆T Thermohygrometers with Dew PointMeasure variable changes with ∆T functionl Recall up to 16 measurementsThis sturdy thermohygrometer is perfect for both laboratory and field use. Meter measures humidity, temperature, and dew point. Features include automatic shutoff after 12 minutes of nonuse, °F/°C selection, min/max, HOLD, low-battery indicator, easy user calibration, and memory storage and recall of up to 16 readings. Order optional calibration kit separately at right.

What’s included: one 9 V battery.

37961-10


Specifications & Ordering InformationResponse time: 10 secondsDisplay: two-line, 12 character LCD

Power: one 9 V battery (included)Dimensions: 3"W x 6"H x 11/2"D

Digital Thermohygrometer with Dew PointQuick response time and high accuracy measurementslDurable construction

for tough applications This meter measures humidity, temperature, and dew point. Simultaneously view temperature and humidity or humidity and dew point on the two-line LCD. The ergonomic and compact design offers comfort and stability during measurement. The shockproof, ABS housing provides a rugged design for industrial applications. Meter features selectable °F/°C, display hold, min/max readings, and auto-off after 30 minutes.

What’s included: one 9 V battery.

37853-00

Catalog number Description PriceKH-37961-10* ∆T Thermohygrometer with dew point


KH-80000-50 Humidity calibration kit. Includes calibration salts for 11% and 75% RHKH-09376-04 Replacement batteries, 9 V. Pack of four

Mode RH Temperature Dew point Range 0 to 95% –22 to 185°F (–30 to 85°C)Resolution 0.1% 0.1°F or °C

Accuracy ±2% (0 to 60%);±3% (61 to 95%)

±1.8°F(±1.0°C)

±3.6°F (±2.0°C) from 30% to 95% RH±7.2°F (±4.0°C) from 10% to 30% RH±14.4°F (±8.0°C) from 5% to 10% RH

Mode RH Temperature Dew pointRange 5 to 95% –4 to 176°F (–20 to 80°C)Resolution 0.10% 0.1°F/°CAccuracy ±2% of reading + 0.1% ±2% of reading + 0.6°

Catalog number Description PriceKH-37853-00* Digital thermohygrometer with dew point


KH-09376-04 Replacement batteries, 9 V. Pack of four


ThermohygrometersMicroprocessor-based for quick and easy calibrationl Download data to PC via RS-232Measure temperature and humidity with these thermohygrometers. Probe is replaceable if damaged.

These meters feature data hold, min/max, memory storage, selectable °F/°C, low-battery indicator, and auto-off after 20 minutes of nonuse. Model 37950-11 also calculates dew point and features an alarm for out-of-range conditions.

What’s included: hard case and one 9 V battery.

37950-03

37950–12

Response time: 8 secondsOutput: RS-232Display: dual-line, 31/2-digit LCD; 1/4"H


Meter: 23/4"W x 71/8"H x 1/8"D Probe: 73/4"L x 3/4" dia


RH


Accuracy ±3% from 20 to 90% at 77°F (25°C)

±2% from 0 to 95% atcalibration temp

TempRange 0 to 122°F (–18 to 50°C)Resolution 0.1°F/°CAccuracy ±0.5° from 32 to 122°F (0 to 50°C)

Dew point

Range — 32 to 122°F (0 to 50°C)Resolution — 0.1°F/°CAccuracy — ±4°F (2°C)

Price

KH-37950-70 Communication cable for RS-232 interfaceKH-35612-90 Calibration salt, 33% RHKH-35612-91 Calibration salt, 75% RHKH-37950-50 Replacement probe for 37950-03KH-37950-54 Replacement probe for 37950-11


Ensure the accuracy of your humidity equipment—calibrate! EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

HUHumidity


753



Response time: 6 secondsOutput: RS-232Memory capacity: 16,000 points

Display: 4-digit LCDPower: one 9 V battery (included)Dimensions: 21/2"W x 71/4"H x 11/2"D


37953-20

Printing ThermohygrometerMeet today’s stringent QC standards

KH-37803-55 AC adapter, 115 VAC KH-37803-50 Replacement printing paper. Pack of 2 rollsEK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

Specifications & Ordering InformationResponse time: 10 seconds Power: six AAA batteries (included) or optional 115 VAC adapter Display: triple-line LCD Dimensions: 3"W x 71⁄2"H x 11⁄2"D

Mode RH Temperature 1 Temperature 2Range 10 to 95% –4 to 140°F (–20 to 60° C) –328 to 2431°F (–200 to 1333°C)Resolution 1% 0.1°F (0.1°C) 0.1°F (0.1°C)Accuracy ±2% from 40 to 80% RH; ±4% outside that range ±1.8°F (±1°C) ±0.2% of reading + 1.8°C

Catalog number Description PriceKH-37803-51* Printing thermohygrometer


Mode RH Temperature K-thermocouple temperatureRange 0 to 100% –4 to 140°F (–20 to 60°C) –328 to 2498°F (–200 to 1370°C)Resolution 0.1% 0.1°F/°C 0.1°F/°CAccuracy ±2.5% ±1.4°F (±0.7°C) ±0.3% of reading + 2°F (1°C)

Catalog number Description PriceKH-37953-20 Dual-temperature thermohygrometer

l Type K thermocouple probe allows secondary temperature measurement

This thermohygrometer measures humidity, ambient temperature, and a secondary temperature with included type K thermocouple probe. Simultaneously display the three parameters on the large LCD. For convenient one-handed operation, attach the probe to included probe holder. Meter features a memory to log up to 16,000 data points to download to a PC via included RS-232 cable. Other features include selectable °F/°C, min/max, Hold, TIME function, low battery indicator, and auto-off.

What’s included: beaded type K thermocouple probe, probe holder, RS-232 cable and Windows® software, one 9 V battery, and a carrying case.

37803-51

Dual-Temperature ThermohygrometerLog up to 16,000 measurements for later analysis

l Meets federal CLIA Specification 93.1207l Provides a permanent hard-copy of the results

l NIST traceable

Provides a permanent record by printing current humidity, dew point, temperature, and min/max readings, plus the time/date they occurred. The meter can be set to automatically and repeatedly print at any programmed interval from every 6 seconds to 59 minutes or at the press of a button. Large, triple-line display with 3⁄8"H LCD continuously and simultaneously shows time, humidity, temperature 1, and temperature 2 readings. Selectable °F/°C reading with fast-response, solid-state sensors that detects change in less than 10 seconds. Case is made of ABS plastic and is chemical- and shock-resistant. The meter is dependable and reliable—ideal for use in cleanrooms, food storage areas, drug manufacturing, air analysis, and environmental chambers.

What’s included: six AAA batteries, paper roll, and carrying case.

Response time Model 03313-65: 30 sec to 31/2 min Model 03313-66: less than 10 sec

Output: RS-232Display: 5-digit LCD


Meter: 51/2"W x 31/2"H x 11/4"D Probe for 03313-65: 7"L x 11/16" dia Probe for 03313-66: 7"L x 3/8" dia

ThermohygrometersMonitor parameters with high and low alarm levelsl Audible alarm and flashing display actuate when

high or low limits are exceededl NIST-Traceable


Thermohygrometers accurately measure humidity and temperature, and calculate dew point. Program high/low audible/visual alarms for temperature, humidity, and dew point. Choose from two models: universal or fast-response.

What’s included: ABS plastic housing, probe with 41/2-ft cable, NIST-traceable calibration certificate, one 9 V battery, and plastic carrying case.

03313-65

Catalog number KH-03313-65* KH-03313-66*

RHRange 10 to 95% 5 to 95%Resolution 0.01%Accuracy ±1.5%

TemperatureRange 40.00 to 220.00°F (4.44 to 104.40°C)Resolution 0.01°F (0.01°C)Accuracy ±0.4°F (±0.2°C)

Dew point Range –40 to 140°F (–40 to 60°C)Resolution 0.01°F (0.01°C)

Price *Meter takes the information gathered from the sensors and calculates dew point.

KH-03313-95 Optional power adapter, 115 VACKH-03313-98 Data output cableKH-03313-99 Parallel-to-serial converterKH-09376-04 Replacement batteries, 9 V. Pack of four

HU Humidity


754



Response time: 4 secondsOutput: infrared and RS-232Memory capacity: 1000 data pointsDisplay: multi-line LCD with backglow

Power: two AA batteries (included)Dimensions

Meter: 21/2"W x 6"H x 1"D Probe: 83/4"L x 3/4" dia


Dew Point Meter with Surface Temperature ProbeIdeal for measuring and recording climatic parametersl Measure surface

temperature with included type K thermocouple probe

l Display flips for easy viewing in hard-to- reach areas

This dew point meter measures humidity, air temperature, surface temperature, dew point, and the difference between surface and dew point temperatures (determines condensation probability). Parameters are simultaneously displayed and updated on a multilingual, backglow LCD. Attach probe to the included holder for one-handed operation.

Store up to 1000 data points and automatically record measurements at user-selected time intervals. Download data to a PC via RS-232 interface (sold separately at right) or transfer data to infrared printer 10361-65 (sold separately at right) for a date and time stamp printout.

What’s included: certificate of NIST traceability, leather pouch, probe holder, and two AA batteries.

Display swivels 120° allowing easy viewing at any anglel Auto calibration mode provides accurate field calibrationsMeasure temperature, humidity, dew point, and wet bulb with this portable thermohygrometer. The large, three-line LCD simultaneously displays temperature, humidity and dew point or wet bulb, and offers the unique feature of 30° angle adjustment forward, and 90° angle adjustment backward.

Dip-switches within the battery compartment allow selectable °F/°C, dew point or wet bulb operation, auto calibration mode, and auto off mode. Auto calibration function recognizes 33% and 75% calibration salts. For convenient hands-free operation, a tripod screw-mounting socket is accessible on the back of the meter.

What’s included: NIST certificate of calibration, leather belt loop case, and one 9 V battery.

Thermohygrometer with Adjustable Display

Response time: 10 secondsDisplay: three-line LCD

Power: one 9 V battery (included)Dimensions: 31/4"W x 7"H x 1"D


Mode Dew point RH Airtemperature

Surfacetemperature

Range –40 to 176°F(–40 to 80°C) 0 to 100% –40 to 175°F

(–40 to 80°C)–40 to 375°F

(–40 to 190°C)Resolution 0.1°F/C 0.1% 0.1°F/C 0.1°F/C

Accuracy ±3.6°F (±2°C) ±3% ±1°F (±0.5°C)

±1°F (±0.5°C)from –40 to 175°F

(–10 to 80°C); ±3°F (±1.5°C)

from 175 to 375°F (80 to 190°C)

KH-37962-50 Software and RS-232 cable. Windows® based analysis software for graphing, annotation, and printingKH-10361-65 Infrared printer includes one roll of paper and four AA batteriesKH-10361-67 Replacement printer paper

Mode RH Temperature Dew pointRange 20 to 95% –4 to 176°F (–20 to 80°C) –58 to 176°F (–50 to 80°C)Resolution 0.1% 0.1°F (0.1°C) 0.1°F (0.1°C)

Accuracy ±2% ±0.5°F (±0.3°C) ±1.2°F (±1.0°C) from 20 to 35%±2.2°F (±2.0°C) from 35 to 95%

Catalog number Description PriceKH-37854-00* Thermohygrometer with adjustable display

KH-09376-04 Replacement batteries, 9 V. Pack of 4


Catalog number Description PriceKH-37962-00* Dew point meter with surface temperature probe

37854-00 has adjustable

display for added convenience.



37962-00 measures four parameters with one probe!

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KH-37486-02 Wireless upgrade kit includes one wireless handle and one wireless module. Can be used with any wireless probe head KH-37486-03 Wireless thermocouple adapter head, accepts any type K mini-thermocouple. Must be used with wireless upgrade kit 37486-02 KH-37486-05 Wireless RH probe head. Must be used with wireless upgrade kit 37486-02 KH-37803-35 Extension cable for use with RH probe head 37486-05 KH-37803-38 Temperature/humidity probe, –20 to 70°C, 0 to 100% RH KH-37803-39 Robust temperature/humidity probe, –20 to 125°C, 0 to 100% RH KH-37803-40 Absolute pressure probe, 0 to 29 psi (0 to 200 hpa) KH-37803-41 Ambient air temperature probe, type K, –60 to 400°C KH-37803-42 High-pressure dew point probe, –30 to 50°C TD, 0 to 100% RH

KH-37486-12 Infrared printer, includes one roll of paper and four AA batteries KH-92600-45 Replacement printer paper. Pack of 2 rollsEK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

CompactPro™ Thermohygrometers with Wireless CapabilityProfessional and reliable long-term use thermohygrometerl Meter requires the probes to be ordered separately from an impressive

range of optionsThese meters have an impressive range of optional probes (meter does not come with a probe) that can measure humidity, temperature, moisture, dew point, and absolute pressure within seconds. Five probe inputs ensure maximum flexibility: two cable inputs and three wireless inputs. All inputs are displayed on a large, backlit display for easy viewing. A rugged designed rubberized housing offers protection against dirt and impact, also equipped with a convenient carrying strap and built-in mounting magnets. Function keys provide access to advanced features including differential, mean, min/max, hold, programmable data files, and user-defined profiles. Optional wireless printer 37486-12 provides documentation of all channels; meter can be set up for timed interval printing for long-term monitoring. Model 37803-37 includes all these features plus adds a 10,000 datalogging capacity, USB cable, and ComSoft software for easy programming and data transferring.

In addition to standard probes with a wire, this meter can be easily upgraded anytime to wireless probes for use up to a distance of 20 meters. A maximum of three wireless probes can be read and displayed by the meter. To add this feature, order wireless upgrade kit 37486-02 (includes one wireless handle and module) along with a wireless probe head.

The high-pressure dew point (HPD) probe 37803-42 incorporates both a quick-connect fitting and integral sample chamber for simple dew point measuring in compressed air systems, dryers, medial and instrument air, and other applications where an accurate dew point measurement is needed.

What’s included: calibration documentation and one 9 V battery.

Response time: 8 seconds Power: one 9 V battery (included)Display: multi-line backlit LCD Dimensions: 21⁄2"W x 7"H x 11⁄2"D

Mode RH Temperature, thermocouple type K Temperature, RTD Dew point*Range 0 to 100% –328 to 2498°F (–200 to 1370°C) 14 to 140°F (–10 to 60°C) –22 to 122°F (–30 to 50°C)Resolution 0.10% 0.1°F (0.1°C) 0.1°F (0.1°C) ±2C tdp (–9.9 to –5 tdp)Accuracy ±2.5% RH ±0.9°F (±0.5°C) ±0.9°F (±0.5°C) —

Catalog number Description PriceKH-37803-36* CompactPro thermohygrometer with wireless capability KH-37803-37* CompactPro thermohygrometer with datalogging and wireless capability

37803-36



Accessories

37486-12

37486-02

37486-03

37486-05

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37924-10 digital thermohygrometer with

standard probe 37924-70

Digital ThermohygrometersErgonomic design for convenient humidity measurementl For maximum flexibility, select probes to fit

your applicationl All probes must be ordered separatelyMeasure temperature and humidity, and calculate dew point and wet bulb. The digital probe technology eliminates calibration and downtime when changing probes. Model 37924-10 also features datalogging and RS-232 capabilities (order cable and software at right). Recharge your meter with docking station 37924-84. Probes sold separately at right.

Response time: 10 secondsOutput: RS-232 (37924-10 only)Display: four-line alphanumeric LCD

Power: 9 V battery (included) Dimensions: 3"W x 7"H x 1"D

TH-Calc™ MeterIdeal for conducting thermal comfort studies and Indoor Air Quality (IAQ) evaluationsl Sampling function records

multiple point measurementsThese temperature, humidity, and dewpoint meters are excellent for a variety of applications. Use them to verify building HVAC system performance, calculate thermal comfort levels, or monitor air conditions for industrial drying processes. Detect IAQ problems in labs, plants, schools, airports, and homes. Choose from the standard model (10273-00) for basic real-time readings, or the advanced model (10273-10) for datalogging and thermo hygrometer readings.

Model 10273-10 features datalogging capabilities that store up to 14,000 samples with a time/date stamp; absolute humidity, and wet-bulb temperature readings. Automatically calculate % outside air after taking necessary temperature readings. Includes Logdat™ software for transferring data to your computer, and Logdat Companion for graphing data in Excel®. Order optional RTD temperature probe separately for a greater temperature range of –40 to 392°F (–40 to 200°C).

What’s included: probe stand, NIST-traceable certificate, carrying case, and four AA batteries.

Specifications & Ordering InformationResponse time: 30 secondsMemory capacity: 4000 data points

(model 10273-10 only)Display: two-line, 4-digit, 1/2"H

Power: four AA batteries (included)Dimensions

Meter: 4"W x 61/2"H x 11/2"D Probe: 513/16"L x 3/4" dia

10273-10

ProbesCat. no. Probe Temp range Price

KH-37924-70 Standard –40 to 185°F(–40 to 85°C)

KH-37924-72 High-temp –58 to 392°F(–50 to 200°C)

KH-37924-80 Sword –40 to 185°F(–40 to 85°C)

Catalog number KH-37924-00* KH-37924-10*

RH


Accuracy ±(0.5% RH + 1.5% of reading)w/4-pt calibration at 23°C/73°F

TempRange –100 to 392°F (–50 to 200°C)Resolution 0.1°F (0.1°C)Accuracy ±0.4°F (±0.2°C)

Datalogging capacity No YesPrice

Catalog number Description PriceKH-10273-00* TH-Calc meter KH-10273-10* TH-Calc meter with % outside air

Mode RH Temperature* Dew pointRange 5 to 95% 32 to 140°F (0 to 60°C) 5 to 120°F (–15 to 49°C)Resolution 0.1% 0.1°F/°C 0.1°F/°CAccuracy ±2% ±1.0°F (0.6°C) —

*Order RTD temperature probe for greater range (sold separately below).


AccessoriesKH-93831-70 General-purpose RTD temperature probe, measures 10"L x 3⁄16" diameter; 316 SS sheath with 51⁄2" glass-filled nylon handle with ANSI connector. For model 10273-10 onlyEK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points KH-10271-60 AC Adapter, 115 VAC


KH-37924-82 Cable and software for model 37924-10. PC-based probe calibration, datalogging, graphing, psychrometric calculationsKH-37924-84 Docking station for model 37924-10; includes 9 V battery charger and RS-232 PC connectionEK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points KH-09506-48 Battery, 9 V, rechargeable NiCd

Accessories


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Calibration to a NIST-Traceable standard helps meet ISO, FDA, USDA, and EPA quality guidelines. Our ANSI/ISO/IEC 17025:2005 accredited metrology laboratory will test and calibrate your humidity equipment. Service includes NIST-Traceable calibration certificate with before and after test data at three humidity points (30, 60, and 80% RH) and one temperature point at ambient.

EK-17030-20 NIST-Traceable humidity certificate

Specs & Ordering InformationResponse time: 5 seconds with grid, 15 seconds

with 0.2 µm membrane filter (included)Display: 31/2-digit LCDPower: one 9 V battery (included)Dimensions

Meter: 21/4"W x 61/4"H x 1"D Probe: 33/8"L x 1/2" dia

37300-20 only

37300-10

Pocket-Size ThermohygrometersLightweight meter with superior accuracyl Fast responsel Probe retracts for convenient use and storageThe HM series meter is ideal for field and on-site relative humidity and temperature readings, this compact, handheld thermohygrometer features an integral probe that slides out easily for measurements, then retracts for convenient storage.

The Humicap® sensor offers excellent long-term stability and negligible hysteresis. Sensor is insensitive to dust and most chemicals. Use the HOLD button to “freeze” your last reading. Meter automatically shuts off after three minutes of nonuse.

What’s included: one 9 V battery and a carrying case.

Thermohygrometer/CalibratorsHigh accuracy and excellent long-term stabilityl Ideal for spot checking and field calibrationl Internal datalogger stores up to 200 readings

Response time: 15 seconds at 90% of reading

Memory capacity: 200 data pointsDisplay: two-line, 8-digit LCD

Power: four AA batteries (included)Dimensions: 31/8"W x 73/4"H x 11/8"D



RH

Range 0.0 to 100%Resolution 0.1%

Accuracy ±2% from 0 to 90%; ±3% from 90 to 100%

TemperatureRange –4.0 to 140.0°F –20.0 to 60.0°CResolution 0.1°F 0.1°CAccuracy ±0.5°F ±0.3°C

Price

KH-17030-20 Calibration service, NIST traceable

Catalog number KH-03334-96 KH-03334-95 KH-03334-97Probe type High temperature Standard IntegralProbe dimensions 125⁄8"L x 1⁄2" dia 107⁄8"L x 3⁄4" dia 45⁄8"L x 3⁄4" dia

RHRange 0 to 100% Resolution 0.1%Accuracy ±1% from 0 to 90%; ±2% from 90 to 100%

TemperatureRange –40 to 356°F

(–40 to 180°C) –40 to 212°F

(–40 to 100°C)Resolution 0.1°F (0.1°C)Accuracy ±1°F (±0.1°C)

Price

KH-03329-52 Replacement probe, standard KH-03329-53 Replacement probe, high temperature KH-03329-82 Communication cable, serial

The HMI series measure relative humidity and temperature; calculate dew point, wet bulb, absolute humidity, and mixing ratios. Models are available with integral, standard, or high-temperature probes; standard and high-temperature probes include a 5-ft cable. Model 03334-96 can be used in temperatures up to 356°F (180°C). Meters are constructed of ABS plastic, rated IP65 against dust and sprayed water.

Meters also feature a one-point calibration function. To calibrate Vaisala transmitters starting on page 760, order the appropriate calibration cable below. Download up to 200 readings with the serial communication cable below.

03334-95

03334-9703334-96


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Dew Point and Temperature MeterTake in-line measurements with a handheld meter

Multi-Probe ThermohygrometerDual probe input for multi-parameter measurement

Sample cell adapter

37301-30

Specifications & Ordering Information Meter Probes

Response time: 10 to 35 secondsOutput: 0 to 1 VDC analogMemory capacity:

900 to 2700 points (real time)Operating pressure: 0 to 290 psi

(0 to 20 bar)

Display: backlit LCDPower: rechargeable NiMH battery

pack or 115 VAC adapter/charger (included)

Dimensions: 31/8"W x 77/8"H x 12/3"D

Dew point accuracy: achieve <±3.6°F (±2°C)

in blue-shaded areas of the graph.

Output: RS-232 and 0 to 1 VDCMemory capacity: 2700 data pointsDisplay: backlit LCD

Power: rechargeable NiMH battery pack or 115 VAC adapter/charger

Dimensions: 31/8"W x 77/8"H x 22/3"D

Specifications & Ordering Information Meter Probes

Mode Dew point RH Temperature Volumeconcentration

Range –40 to 140°F (–40 to 60°C) 0 to 100% 14 to 140°F

(–10 to 60°C)40 to

200,000 ppmResolution 0.01°F/°C 0.01% 0.01°F/°C 1 ppm

Accuracy ±3.6°F(±2°C)

<10%: ±0.025%+ 8.75% of rdg;>10%: ±0.7%+2% of rdg

±0.36°F(±0.2°C)

7.3 ppm + 8.3% of rdg

Catalog number Description PriceKH-37301-30 Vaisala dew point meter

Catalog number Description PriceKH-37301-40 Vaisala multi-probe thermohygrometer

Catalog number A KH-37301-90 B KH-37301-92 C KH-37301-94Probe type General-purpose 12" stainless steel 5 m extension cable

RHRange 0 to 100%Resolution 0.01%Accuracy ±1% from 0 to 90%, ±2% from 90 to 100%

TempRange –4 to 140°F

(–20 to 60°C)–58 to 248°F

(–50 to 120°C)–94 to 356°F

(–70 to 180°C)Resolution 0.01°F/°CAccuracy ±0.36°F (±0.2°C)

Dew point Range –4 to 212°F (–20 to 100°C)Resolution 0.01°F/°C

Response time 8 seconds 40 seconds 20 secondsDimensions (probe plus handle) 123⁄4"L x 1⁄2" dia 21"L x 1⁄2" dia 2071⁄2"L x 1⁄2" dia

Price

Probes

l Store 2700 data points—download later to your PC via RS-232 interface

l Display measurements numerically or graphicallyl Three probe types available; tailor the meter

for your application (temperature range: –70 to 120°C)Meter measures temperature and humidity, plus calculates dew point, wet bulb, mixing ratio, absolute humidity, enthalpy, and water vapor pressure. It offers six different languages in display. Log three parameters into meter memory while displaying data in numerical or graphical fashion. View graphic trends of any parameter on backlit LCD.

Customize your application with three humidity probes (sold separately). The general-purpose probe measures ambient conditions. Use the 12" stainless steel probe for air duct measurements. The extension cable probe includes a humidity sensor at the end of a 5-meter cable for high-temperature and hard-to-reach measurements. Probes include certificate of NIST traceability. Order probes separately below.

What’s included: Windows®-based analysis software, rechargeable battery pack, 115 VAC adapter, and carrying case.

A B C

37301-40

A 37301-90B 37301-92C 37301-94

l In-line measurement for compressed air linesl Handheld meter withstands condensation for

use in pressurized spacesl Drycap® sensor technology provides

accuracy, reliability, long-term stability, and fast response

l Meter logs all readings for later analysis—simply download to your PC via the RS-232 interface

The dew point meter DM series is ideal for use in industrial spot checking of compressed air lines, plastic molding processes, and other dry gas applications. Meter accurately measures dew point temperature from –40 to 140°F (–40 to 60°C). Sensing probe features the unique Drycap polymer-based technology that enables reliable dew point measurement.

The easy-to-connect sample cell adapter withstands condensation and is easily connected allowing it to be placed directly in pressurized spaces. Readings are displayed either numerically or graphically on the backlit LCD—simply press a key and the display changes to a real-time graphic display. Meter has a unique auto-calibration feature that extends the calibration interval and provides long-term stability.

What’s included: Windows®-based analysis software, analog output signal cable, sample cell adapter, certificate of NIST traceability, rechargeable battery pack, 115 VAC adapter, and carrying case.

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Transmitters

Relative Humidity or RH/Temperature Transmitters

03334-36

03334-05 03334-35Specifications & Ordering Information


Wall-mount model 37303-00

Duct-mount model 37303-10

Basic-Use Humidity TransmittersExcellent stability with easy installation and reliable operationUse the HMW-40 series two-wire transmitters to monitor your relative humidity conditions. Low-maintenance units require no calibration and have an easy to replace sensor.

Range: 0 to 100% RHAccuracy: ±3% from 10 to 90% RHOutput: 4 to 20 mAResponse time: 15 seconds

Power: 10 to 28 VDCDimensions

Housing: 31/8"W x 31/8"H x 11/2"D; Probe: (duct-mount model): 101/2"L x 5/8" dia

Catalog number Description PriceKH-37303-00 Wall-mount humidity transmitter KH-37303-10 Duct-mount humidity transmitter

KH-37303-50 Replacement RH sensor for RH transmitters 37303-00 and -10

Catalog number KH-03334-05 KH-03334-15 KH-03334-18 KH-03334-25 KH-03334-35 KH-03334-36

Description RH transmitter RH transmitter RH transmitter, NEMA 4

RH/temperature transmitter

RH/temperature transmitter

RH/temperature transmitter, NEMA 4

Mounting type Wall mount Duct mount Wall mount Wall mount Duct mount Wall mount

RH Range 0 to 100% 0 to 100% 0 to 100% 0 to 100% 0 to 100% 0 to 100%

Accuracy ±2% from 0 to 90%;±3% from 90 to 100%

±2% from 0 to 90%;±3% from 90 to 100%

±2% from 0 to 90%;±3% from 90 to 100%

±2% from 0 to 90%;±3% from 90 to 100%

±2% from 0 to 90%;±3% from 90 to 100%

±2% from 0 to 90%;±3% from 90 to 100%

Temperature Range — — — 23 to 131°F (–5 to 55°C) –4 to 176°F (–20 to 80°C) –4 to 140°F (–20 to 60°C)Accuracy — — — ±0.36°F (± 0.2°C) ±0.36°F (±0.2°C) ±0.36°F (±0.2°C)

Output 4 to 20 mA 4 to 20 mA 4 to 20 mA 4 to 20 mA 4 to 20 mA 4 to 20 mAPrice

Response time: 15 seconds with filter; 5 seconds without filter (for 90% of reading at 20°C)

Power: 10 to 35 VDC

Designed for industrial and HVAC applicationsThe HMW-60 series with the HUMICAP® sensors have long-term stability, negligible hysteresis, and resistance to dust and most chemicals. Two-wire transmitters monitor your humidity or RH/temperature conditions with ±2% RH accuracy. Probe on models 03334-18 and -36 measures 3"L x 0.75" dia. Sensors on models 03334-15, -18, -35, and -36 include a 0.5-µm membrane filter.

Temperature and Humidity or Dew Point TransmittersTwo-wire loop powered or three-wire voltage output configurations

Specifications & Ordering InformationResponse time: 30 secondsDisplay: LCD (display model only)

Power: 10 to 35 VDCExternal cable: 9 ft

Dimensions (housing): 11⁄16"W x 711⁄16"H x 11⁄4"D

l HUMICAP® sensor resists dust and most chemicalsThe HMT-100 series transmitters are designed for monitoring humidity and temperature in demanding environments. The transmitters can be wall mounted and come with either an integral or remote probe, and with or without a display. IP65 (NEMA 4) protective housing The remote probe option is ideal for high-temperature applications or where space is limited. Remote probe is made of chrome-coated aluminum and has a 10-ft L cable.

Note: Other options may be available—call for more information.

37803-46 37803-45

Catalog number KH-37803-44 KH-37803-45 KH-37803-46 KH-37803-47 KH-37803-48 KH-37803-49 KH-37804-50 KH-37804-51Parameters RH/temperature Dew point/temperatureProbe type Integral Remote Integral Remote Display No Yes No Yes No Yes No Yes

RH Range 0 to 100% 0 to 100%Accuracy ±1.7% from 0 to 90%, ±2.5% from 90 to 100% ±1.7% from 0 to 90%, ±2.5% from 90 to 100%

Temperature Range –40 to 176°F (–40 to 80°C) –40 to 176°F (–40 to 80°C)Accuracy 0.36°F (±0.2°C) — — — —

Dew point* Range — — — — –4 to 176°F (–20 to 80°C)Price


Dimensions Wall mount: 31⁄4"W x 41⁄4"H x 11⁄4"; NEMA 4, wall mount: 411⁄16"W x 711⁄16"H x 11⁄4"D

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Transmitters

Relative Humidity/Temperature Industrial TransmittersAccurate and stable measurements for any industrial applicationl IP65-rated housing provides corrosion-resistant protectionl Graphically monitor measurement trends on LCD (display models only)These HMT-330 series transmitters provide reliable and long-term stability of humidity and temperature measurements. Select RH/temperature transmitters or universal transmitters—with or without a display. The RH/temperature transmitters measure relative humidity and temperature. The universal transmitters measure relative humidity, temperature, dew point, absolute humidity, wet bulb, mixing ratio, and enthalpy. Transmitters with a display provide both numerical and graphic measurement capabilities. The graphic display shows measurement trends and parameter history up to one year.

Integral Probe Transmitters are ideal for HVAC and condition monitoring applications. The 43⁄4"L x 1⁄2"-dia probe is directly attached to the housing and features a stainless steel filter.

Tight-Space (Duct-Mount) Probe Transmitters let you measure in remote installations and small spaces. The 31⁄2"L x 1⁄2"-dia probe is attached to a 61⁄2-ft length of cable and features a stainless steel filter. Duct mounting kit (included) contains an aluminum flange, lead-through piece, and steel support bar.

High-Temperature Probe Transmitters measure temperature up to 356°F (180°C). The 10"L x 1⁄2"-dia stainless steel probe tolerates mechanical stress and high flow rates, and is attached to a 61⁄2-ft length of cable. Mounting flange (included) allows convenient installation.


What’s included: NIST-traceable calibration certificate.


Probe type Temperature range Dew point Without display With displayCatalog number Price Catalog number Price

RH/temperature transmittersIntegral –40 to 140°F (–40 to 60°C) — KH-37510-20 KH-37510-22 Tight space (duct mount) –40 to 176°F (–40 to 80°C) — KH-37511-20 KH-37511-22 High temperature –94 to 356°F (–70 to 180°C) — KH-37512-20 KH-37512-22 Universal transmittersIntegral –40 to 140°F (–40 to 60°C) –4 to 140°F (–20 to 60°C) KH-37510-24 KH-37510-26 Tight space (duct mount) –40 to 176°F (–40 to 80°C) –4 to 176°F (–20 to 80°C) KH-37511-24 KH-37511-26 High temperature –94 to 356°F (–70 to 180°C) –4 to 212°F (–20 to 100°C) KH-37512-24 KH-37512-26

RH Range: 0 to 100% RH Accuracy: ±1% from 0 to 90%, ±1.7% from 90 to 100% Output: 4 to 20 mA, RS-232

Temperature Accuracy: ±0.2°F (±0.1°C) Output: 4 to 20 mA, RS-232

Dew point (universal transmitters only) Accuracy: ±1°F (±1°C) Output: 4 to 20 mA, RS-232

37510-22

37511-22

Response time: 20 seconds (90% response)Display: backlit LCD (display models only)Power: 10 to 35 VDC, 24 VACDimensions: 71⁄4"W x 41⁄2"H x 3"D

DRYCAP® Dew Point TransmitterIdeal choice for compressed air linesl Wide measurement range of –112 to 68°F (–80 to 20°C)l Rapid response time with long-term stabilityl NIST traceable

Specifications & Ordering InformationResponse time: 30 seconds

Mode Dew pointRange –112 to 68°F (–80 to 20°C)Resolution 0.10%Accuracy ±3.6°F (±2.0°C)


KH-37803-43 DRYCAP® dew point transmitter

Power: 24 VDCDimensions: 61⁄2"H x 21⁄2" diaVaisala DRYCAP® DMT-242 series transmitter provides reliable

and stable measurements for low dew point industrial dryer applications. The sensor is immune to particulate contamination, water condensation, oil vapor, and most chemicals. Because the sensor withstands condensation, it offers unmatched performance in low dew point applications that experience process water spikes. The housing is IP65 (NEMA 4) rated and provides protection against dust, dirt, and splashed water. Due to its compact size it can quickly and easily be installed in tight spaces and directly into a system with a maximum pressure of 20 bar. The transmitter can be field checked using Vaisala handheld meters 37301-90, -92, and -94 on page 909.

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Transmitters

Dew Point and Temperature Transmitter for Low Dew Point ApplicationsMeasures dew point from –60 to 80°C with an accuracy of ±2°Cl DRYCAP® sensor provides accurate, reliable measurement

with excellent long-term stability and fast responsel Display numeric and graphic data—up to one year of measurements trendsl Two analog outputs and a serial interfaceThe DMT-340 series transmitters are designed for demanding industrial applications with dry conditions. Typical applications include compressed air drying and metal treatment. They offer reliable, accurate measurements with excellent long-term stability in dew points down to –60°C (–58°F). The DRYCAP sensor is immune to particulate contamination, water condensation, oil vapor and most chemicals. Since the sensor withstands condensation it offers unmatched performance in low dew point applications that experience water spikes in the process.

Model 37804-53 features a graphic/numeric display and an easy-to-use, menu-based user interface. Both models have datalogging capability. One year of dew point and temperature data is automatically stored in the microprocessor and can be viewed locally on the display (37804-53), or downloaded to a PC to study historical trends. The unique auto-calibration function, patented by Vaisala, is a calibration and adjustment that the transmitter performs by itself while the measuring process is running. If the measurement accuracy is not confirmed, corrections are made automatically to the calibration curve.


What’s included: NIST-traceable calibration certificate.



Intrinsically Safe Humidity TransmittersFactory Mutual approved for hazardous indoor applicationsl Meets Class I, II, III, Division 1, Groups A-G and Division 2, Groups A-D, F and GMeasure temperature and humidity in environmentally hazardous areas. NEMA 4 (IP65) housing is rated water- and dust-proof. Wall-mount and duct-mount versions are available with or without an LCD. Two 4 to 20 mA outputs offer analog signals, one for humidity and one for temperature.

What’s included: certificate of NIST traceability. Wall-mount transmitters include a probe measuring 45/8"L x 1/2" dia. Duct-mount transmitters include a probe measuring 211/16"L x 1/2" dia with 78" (2 m) of cable length, and a duct installation kit.

37510-12 with

spark-proof design

Model type Wall-mount transmitters Duct-mount transmittersCatalog number KH-37510-10 KH-37510-12 KH-37510-14 KH-37510-16

Description Without display With display Without display With display

RHRange 0 to 100%Accuracy ±1% from 0 to 90%, ±2% from 90 to 100%Output 4 to 20 mA

TemperatureRange –40 to 140°F (–40 to 60°C) –40 to 248°F (–40 to 128°C)Accuracy ±0.36°F (±0.2°C)Output 4 to 20 mA

Price

Catalog number KH-37803-52 KH-37803-53Mode RH/dew point/temperature RH/dew point/temperature Probe type Remote RemoteDisplay No Yes

RH Range 0 to 70% 0 to 70%Accuracy ±0.004% + 20% of reading ±0.004% + 20% of reading

Temperature Range –32 to 176°F (0 to 80°C) –32 to 176°F (0 to 80°C)Accuracy ±2°F/°C ±2°F/°C

Dew point* Range –76 to 176°F (–60 to 80°C) –76 to 176°F (–60 to 80°C)Price


Response time: 30 secondsDisplay: LCD (display model only)Power: 10 to 35 VDC

Dimensions Housing: 71⁄4"W x 41⁄2"H x 3"D External cable: 6 ft

37803-53


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