Extech Instruments Hygro-Thermometers, Humidity Alert Catalog Page

Big Digit Hygro-Thermometers and Humidity Alerts

Hygro-Thermometers & Humidity Alert

445703/445715 Big Digit Hygro-Thermometers

1" Digits on large dual LCD display for easy viewing

• Large dual LCD simultaneously displays Temperature (14 to 140°F/-10 to 60°C)
and Humidity (10 to 99% RH), plus MAX/MIN with reset
function with Max resolution of 0.1°and 1%

• Model 445703 is designed with built-in Humidity and Temperature
sensor with ±1.8°F/1°C and ±5%RH basic accuracy

• Model 445715 includes remote probe with 18" (457mm) cable and probe with
±1.8°F/1°C and ±4%RH basic accuray; probe clips on side of meter; certificate
of calibration traceable to NIST available; Rear calibration adjustment pot

445703

445715 with remote probe

• Dims: 4.3x3.9x0.78" (109x99x20mm); Wt: 6oz (169g); 1 year warranty

• Complete with built-in stand, wall mount bracket, and AAA battery; Model 445715
also includes remote sensor. Optional calibration salt bottles (RH300-CAL)

Optional 445715-NISTL includes certificate
of Traceability to NIST at 75%. For Certificate
of Traceability to NIST at 2 points (33% and
75%), order 445715-NIST (see p. 160 for
ordering information)

ORDERING

445703 Big Digit Hygro-Thermometer $42.99

445715

N

RH300-CAL 33% & 75% RH Calibration Kit (for 445715) $59.99

Big Digit Remote Probe Hygro-Thermometer $55.99

445814/445815 Humidity Alerts

Programmable Alarm warns when Humidity level is too high or too low

• %RH audible and visual alarm alerts when humidity is higher or
lower than HI/LO set points, plus Max/Min with reset function

• Simultaneous display of Temperature (14 to 140°F/-10 to 60°C)
and Humidity (10 to 99% RH)

• Max resolution: 0.1°, 1%; Basic Accuracy: ±1.8°F/1°C and ±4%RH

• Displays Dew Point temperature

• Rear calibration adjustment pot for Humidity and Temperature

• Warns when conditions for mold growth exist (bad for health) or air too dry (static)

• Dims: 4.3x3.9x0.78" (109x99x20mm); Wt: 6oz (169g); 1 year warranty

445814

445815 with remote probe

• Complete with built-in stand, wall mount bracket, sensor and one
AAA battery; optional calibration salt bottles (RH300-CAL)

• Model 445814 is designed with built-in Humidity and Temperature sensor

• Model 445815 includes remote probe with 18" (457mm) cable and probe clip

These Humidity Alerts have audible and visual
alarm that warn when conditions for mold
growth exist (bad for health) or when low
humidity conditions for static electricity exist.

on side of meter and offers certificate of calibration traceable to NIST)

ORDERING

445814 Humidity Alert $49.99
445815 N
RH300-CAL 33% & 75% RH Calibration Kit (for 445815) $59.99

Humidity Alert II $55.99

445713/445713-TP Big Digit Indoor/Outdoor Hygro-Thermometers

Monitor Indoor/Outdoor Humidity and Temperature

• Model 445713-TP with wider Temperature ranges and longer cable length

• External Temperature Probe:
445713: 14 to 140°F (-10 to 60°C); 445713-TP: -58 to 158°F (-50 to 70°C)

• Internal Temperature Sensor:
445713: 14 to 140°F (-10 to 60°C); 445713-TP: 32 to 122°F (0 to 50°C)

• Internal Relative Humidity Range:
445713: 10 to 99% RH; 445703-TP: 20% to 99% RH

• Basic accuracy of ±1.8°F (±1.0°C), ± 5% RH

• Max/Min with “reset” function

• Dimensions: 4.3x3.9x0.78" (109x99x20mm); Weight: 6oz (169g)

445713

445713-TP
Ideal for below
freezing temperature

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N Indicates products that are available with optional calibration traceable to NIST. See page 160 for a complete listing.

• Complete with built-in stand, wall mounting bracket, and a 1.5V AAA battery
445713 includes outdoor sensor with 35" (89cm) cable
445713-TP includes outdoor sensor with 9.75ft (3m) cable

ORDERING

445713 Big Digit Indoor/Outdoor Hygro-Thermometer with Remote Probe $42.99
445713-TP Indoor/Outdoor Hygro-Thermometer with Wide Range Remote Probe $42.99

RHT3 EzSmart™ Hygro-Thermometer

Make your iOS® & Android™ Smart Devices* even smarter with this EzSmart
Hygro-Thermometer and free app from iTunes

• Measures Humidity and Temperature simultaneously

• Calculates Wet Bulb and Dew Point Temperature

• Continuous graph plots Humidity and Temperature changes over time

• 5 user-settable high/low alarms for both Temperature and Humidity

• 4 records — each contains 100 data points with Humidity, Temperature,
Wet Bulb, and Dew Point, plus Time, Date and GPS coordinates

• Post images directly to social media (Facebook

• Complete with built-in sensor and protective connector cap with strap; 1yr warranty

* iOS/Android device not included (see compatible device on www.extech.com/RHT3)

SPECIFICATIONS RANGE RESOLUTION BASIC ACCURACY

Relative Humidity 20% to 95%RH 0.1%RH ±5% RH
Temperature -4 to 140°F (-20 to 60°C) 0.1° ±1.8°F (±1°C)
Wet Bulb (calculated) -4 to 140°F (-20 to 60°C) 0.1°

Dew Point (calculated) -40 to 140°F (-40 to 60°C) 0.1°

Free Smart Device App

Measure °F/°C and %RH, view in
digital or graph mode, take photos,
and record data onto the photo.

Dimensions / Weight 0.7 x 0.35 x 2.1" (18 x 9 x 54mm) / 0.25oz (7g)

ORDERING

RHT3 EzSmart™ Hygro-Thermometer $59.99

RH30/RH35 Humidity Alerts

Monitor Temperature and Humidity to gauge proper heat and moisture levels
in an area and it also records high and low extremes during the day

• Measure Temperature/Dew Point & Humidity; basic accuracy of ±1.8°F/1°C, ±5%RH

• MAX/MIN with reset function

• Complete with stand and batteries; 1 year warranty

Model RH30 Additional Features

• Measures Temperature/DP (4 to 122°F/-10 to 50°C) and Humidity (10 to 99%RH)

• Beeper sounds and bright facial LED flashes when humidity
level exceeds user preset (50, 60, or 65%RH)

• Dimensions/Weight: 3.7x3.7x0.9" (94x94x23mm)/ 4.8oz (136g)

Model RH35 Additional Features

• Measures Temperature/DP (14 to 140°F/-10 to 60°C) and Humidity (10 to 99%RH)

• Innovative graphical display shows the measured humidity
values of the last 24 hours like a radar screen

• Beeper sounds and bright LED flashes when humidity level exceeds 65%RH

• Facial icons indicate comfort zone (between 40 to 60%RH) and
uncomfortable zone (too dry < 40%RH or too humid > 60%RH)

RH35

• Dimensions/Weight: 3.9x4.3x 2" (98x109x55mm)/ 3.1oz (87g)

ORDERING

RH30 Humidity Alert $34.99
RH35 Desktop Radar Hygro-Thermometer Alert $34.99

RHM15 Mini Hygro-Thermometer Monitor

Monitor Temperature and Humidity to gauge proper heat and moisture levels
in an area and it also records high and low extremes during the day

• Simultaneous display of Temperature (14 to 140°F) and Humidity (10 to 99% RH)

• Basic Accuracy: ±1.8°F/1°C and ±5%RH

• MAX/MIN with reset function

• Dims: 2x1.5x0.63" (51x38x16mm); Wt: 0.8oz (24g)

• Complete with stand and LR44 battery; 1 year warranty

Mini-sized housing is ideal for monitoring Humidity/
Temperature levels in musical instrument cases, humidors,
computer server rooms, labs, office areas, and wine cellers

ORDERING

RHM15 Mini Hygro-Thermometer Monitor (%RH and °F only) $24.99

For the name of your local stocking distributor, visit www.extech.com

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and Google Play™ store

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and Twitter™)

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