Digital thermo-hygrometer cooperating with the Testo 625 mobile application

The compact testo 625 thermo-hygrometer enables you to measure temperature and relative humidity easily, quickly and precisely to assess indoor air quality or to ensure optimal conditions in storage rooms. The smart testo Smart App. supports you with useful functions, e.g. meter configuration, display (also as a second screen) and storage and documentation of measured values directly in the app.

Key features of the Testo 625 thermohygrometer

  • Simple, fast and precise measurement of air temperature and relative humidity
  • Calculation of dew point and wet bulb temperature
  • Quick setup in the app, graph history, second screen function and measurement data storage in the testo Smart App.
  • Acoustic alarm when limit values are exceeded

Relative humidity and air temperature are two decisive factors, including to assess the quality and comfort of indoor air. So if you want to provide people with indoor comfort or optimal storage conditions, the compact testo 625 thermo-hygrometer is the perfect choice. To obtain accurate results as quickly and easily as possible, the testo 625 not only automatically calculates the dew point and wet bulb temperature. The average over time and point is also displayed immediately. With the testo Smart App you can make the most of the advantages of the testo 625 thermohygrometer: - Configuration of your measuring instrument - Graphical display of measured values - Recording of measurement data - Management of customers and measurement locations - On-site documentation - Sending measurement reports via e-mail.

Set contains:

  • Testo 625, a moisture/temperature meter that works with a mobile app and has an audible alarm function
  • Transport bag
  • Manufacturer's factory calibration protocol
  • 3 x AA batteries

Technical data:

Humidity - capacitive sensor

Measurement range:

0 do 100 %RH


2,5 %RH (5 do 95 %RH)


0,1 %RH

General technical data


199 g


208 x 60 x 28 mm

Probe: 12 x 15 mm

Working temperature:

-20 do +50 °C

Probe: -20 do +70 °C

Housing material:


Security class:



Battery type:

3x AA

Battery life:

100 h

Storage temperature:

-20 do +50 °C

Temperature measurement - NTC

Measurement range:

-20 do +60 °C


±0,5 °C


0,1 °C

0563 1625

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