RH1 Humimeter - Thermohygrometer

  • Part #:HM-11487
  • Weight:270 g (incl. batteries)
  • Dimensions:249 x 75 x 30 mm
  • Availability: Inquire

Price: $359.51
Price: $485.34


The RH1 Thermohygrometer is a highly accurate portable handheld measuring instrument for measuring relative air humidity, absolute air humidity, dew point, equilibrium moisture content of wood using innovative sensor technology.  The measuring range of the RH1 thermo-hygrometer is between 0 and 100% RH at a resolution of 0.1%. The calibrated measurement range, in which the measurement is within the defined tolerance limits, ranges from 10% to 90% of the relative humidity, where the accuracy of +/- 1.5% of relative humidity (at 25°C) is reached.  The temperature measurement range is from -10 to +60°C or 14 to 140°F, at a resolution of 0.1°C. The accuracy is +/- 0.4°C.

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  • Temperature can be set to °C and °F as required
  • Hold function, manual saving of results
  • Automatic datalogging for 10,000 logs with measuring point report
  • User data and batch number can be recorded


Relative air humidity: 
0 to 100%, resolution 0.1% RH
10% to 90% +/-1.5% RH (at 25°C)
-10°C to + 60°C/14°F to 140°F, resolution 0.1°C
+/-0.3°C (at 25°C)
Dew point: 
-55°C to +60°C, resolution 0.1°C, -67°F to 140°F
Absolute air humidity: 
0 to 130 g/m³, resolution 0.1g/m³
Equilibrium moisture content of wood - UGL: 
2% to 30%, resolution 0.1%
5% to 15%, accuracy +/-0.5% (at 25°C)
Sensor tube: 
sturdy 105 x 12mm plastic tube

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Certified Calibration Ampoules Set

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Certified calibration ampules - set of 5, 50% r.h. are used to calibrate any capacitance type humimeter device.

Protective wooden carrying case for RH1 Humimeter