Testo 608 H thermohygrometer with fixed sensors

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  • Allows continuous measurement of temperature and relative humidity
  • Dew point calculation
  • Clear display
  • High-quality humidity sensor
The testo 608 H thermo-hygrometer allows you to efficiently measure temperature and relative humidity. The testo 608-H air humidity meter is ideal for continuous measurements of indoor air quality parameters.

The meter allows precise measurement of temperature, relative humidity and dew point in rooms such as offices, warehouses, laboratories, etc. The thermohygrometer can be hung on the wall or placed on a desk or shelf.

The purpose of this laboratory meter is the instantaneous measurement of temperature, humidity and dew point, while the meter's memory only allows the display of maximum and minimum values from the measurement. The testo 608 H has an NTC sensor and also a capacitive humidity sensor, which ensures long life and stability of measurements.

The testo 608-H2 meter additionally has an LED alarm that indicates when limit functions are exceeded.

The kit included is the Testo 608 H Thermohygrometer, batteries, factory calibration certificate.

Technical specification
Parameters testo 608

Measurement range [°C]

0 to +50 °C

-20 to +50 °Ctd

Accuracy  [°C] ±0,5 °C (at +25 °C)

Resolution  [°C]

0,1 °C

Measurement range of humidity [%RH]

10 to 95 %RH

Accuracy [%RH]

±3 %RH (10 to 95 %RH)

Resolution [%RH]

0,1 %RH

Dimensions [mm]

111 x 90 x 40 mm

Measurement speed [sek]

18 sek.



Model Parameter Temperature [° C]
testo 608-H1 temperature, relative humidity, dew point 0 to +50 °C -20 to +50 °Ctd
testo 608-H2 Temperature, relative humidity, dew point (LED alarm) 0 to +50 °C -20 to +50 °Ctd

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