Digital therma-hygrometer humidity meter

Digital therma-hygrometer humidity meter

with interchangeable %rh & temperature probe to EN 196-2, EN 196-21, EN 459-2

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This therma-hygrometer is an easy to use relative humidity and air temperature measuring meter. The unit measures %rh over the range of 0 to 100%rh with a resolution of 0.1 %rh and temperature over the range of -20 to 50°C with a resolution of 0.1°C.

  • Interchangeable %rh & temperature probe
  • Max/min function & dew point calculation
  • Long battery life - 10000 hours
  • High accuracy - 2%rh

The humidity meter incorporates a clear custom LCD with °C, %rh, max/min, hold and dew point indication. There is an automatic display of both open circuit and low battery.

The unit is powered by three 1.5 volt AAA batteries with a minimum life expectancy of up to 10000 hours. An auto power off facility turns the therma-hygrometer off automatically after 10 minutes, maximising battery life.

The 6100 therma-hygrometer utilises an interchangeable probe that incorporates a one-metre lead with a 6-pin Lumberg connector. If the probe needs to be replaced, the instrument will not require recalibration as the probes are fully interchangeable.

RH calibration test capsules are also available for 33 and 75%rh (supplied as a pair). Simply insert the probe into the capsule and compare the humidity reading against the value of the capsule.


  • Probe/sensor style: internal sensor
  • Power source: battery powered
  • Measurement scale: Centigrade, %rh and dew point
  • Max/min function: yes
  • Display type: LCD digital
  • Display hold: yes
  • Country of manufacture: United Kingdom
  • Case material: plastic
  • Battery monitor: yes
  • Warranty: two years


Range -20 to 50°C 0 to 100%rh
Resolution 0.1°C 0.1%rh
Accuracy ±1°C ±1 digit ±2% (10 to 90 %rh)
Sensor type silicone bandgap capacitance polymer
Battery 3 x 1.5 volt AAA
Battery life 10000 hours
Display 12mm LCD
Dimensions 25 x 56 x 128mm
Weight 130g