Testo 625 Thermo Hygrometer

0563 6251


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  • Humidity range: 0 to 100% RH
  • Humidity accuracy: ±2.5% RH
  • Humidity resolution: 0.1% RH
  • Temperature range: -10 to 60°C
  • Temperature accuracy: ±0.5°C
  • Temperature resolution: 0.1°C
  • Max./min./hold functions
  • 2 year guaranteed long-term stability

The Testo 625 thermo hygrometer is a compact, handheld instrument with a built-in humidity probe head for measuring humidity, wet bulb temperature, or dew point as well as temperature. Featuring a probe head that can be easily removed and attached to the handle via a probe cable or wireless transmitter, the Testo 625 thermo hygrometer is perfect for measuring air moisture in hard-to-reach areas.

The Testo 625 thermo hygrometer has a large 2 line display that includes min./max. values as well as a hold button to freeze readings. The Testo 625 thermo hygrometer measures humidity from 0 to 100% RH with an accuracy of ±2.5% and a resolution of 0.1%. Temperature readings from -10 to 60°C are accurate to ±0.5°C with a resolution of 0.1°C.

Testo TopSafe Protective Case
Indestructible protection case protects from impact
Testo RH Calibration Set
Perform quick checks or full calibrations for humidity probes


This product can be used in the following applications: