Materials Testing
    Compact thermal hygrometer

Compact thermal hygrometer

Ideal for evaluating ambient comfort and building performance analysis.

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Why buy from Geneq? - find out more

The Compact thermal hygrometer testo 605-H2 is ideal for evaluating ambient comfort and building performance analysis.

With its long term, resilient, Testo patented sensor, the testo 605-H2 thermal hygrometer can provide correct air humidity, air temperature, and wet bulb calculations for in-duct or room measurements. The rotating cap will further protect the sensor from dirt and impact, ensuring proper measurements for years.

  • Provides precise measurement of air humidity, air temperature and wet bulb
  • Compact size is ideally suited for measurements in ducts
  • Resilient humidity sensor ensures long life
  • Rotating display allows for easy reading of measurements
  • Quick response sensor provides fast readout of measurements
  • Temperature measuring range: 32 to 122 degrees F (0 to 50 degrees C)
  • Humidity measuring range: 5 to 95 %rH
Temperature - NTC

Measuring range

32.0° to 122.0 °F / 0 to +50 °C

-4 to +122 °F / -20 to +50 °C


±0.9 °F / ±0.5 °C


0.1 °F / 0.1 °C

Humidity - Capacitive

Measuring range

5 to 95 %rH


±3 %rH


0.1 %rH

General technical data

Operating temperature

32.0° to 122.0 °F / 0 to +50 °C

Battery type

3 x AAA

Battery life

Approx. 1000 h

Storage temperature

-4.0° to 158.0 °F / -20 to +70 °C


3 oz. (with batteries, without packaging) / 75 g (with batteries, without packaging)