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RH/Temperature Indicator

RH/Temperature Indicator
  • ± 1% RH (0-90%), ± 2% (90-100%)
  • Measures temperature from -40 to + 212° F (up to 356°F for short periods)
  • Calculates dewpoint, wet bulb temperature, absolute humidity and mixing ratio
  • Serves as an easy-to-use field calibrator
  • Data collection capability, with serial line download to PC

This hand-held indicator can be used for spot checking humidity and temperature in cleanrooms, HVAC systems, storage enclosures, and environmentally sensitive areas.

In addition to displaying %RH and temperature readings, it also calculates dewpoint and wet bulb temperature, absolute humidity, and mixing ratio, freeing you from awkward conversion tables and complex calculations. The indicator features an easy-to-read two-line liquid crystal display, with metric and non-metric readout.

The Temperature/Humidity Probe features a stainless steel head made to withstand rough handling. The probe’s long shaft is perfect for cramped, inaccessible spaces. The HUMICAP® sensor provides high accuracy, excellent long-term stability, and negligible hysteresis. It is insensitive to dust, particulates and most chemicals.

This easy-to-use instrument offers fast response time, high measurement accuracy, excellent stability, and a wide measurement range, making it ideal for field calibration and other demanding applications.

RH/Temperature Indicator
(includes temperature/humidity probe, case and ceretificate)

Vaisala Inc. Part # Cat. # Price
HM141SETD5B 3710-04A $ 1,451
Specifications Indicator:
Accuracy (@ +20°C): ±1 %RH; ± 0.1°C
Resolution: 0.1 %RH; 0.1°C
Power Supply: 4 batteries, type AA (LR 6)
Battery Life: 72 hours continuous use
Operating Temperature: -4 to +140°F (-20 to +60°C)
Display: Two-line LCD
Housing Material: ABS plastic
Dimensions: 80mm x 37mm x 200mm
Weight: 300 g (including batteries)
Temperature/Humidity Probe:
Measurement Range : 0 to 100 %RH non-condensing
-40 to +100°C continuous
-40 to +180°C short-term
Accuracy (@+20°C):
Humidity: ± 1% RH (from 0 to 90%RH); ± 2%RH (from 90 to 100% RH) when properly calibrated
Temperature: ± 0.2°C
Stability: Better than 1% per year (typical)
Response Time: 15 seconds (90%RH at +20°C)
Temperature Sensor: IEC 751 .333 class B-RTD P+1000
Operating Temperature: -20 to +60°C
Dimensions: 38mm x 30mm x 440mm
Cable Length: 150mm; extended spiral cable
Weight: 450 g
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