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testo 625 - Digital thermohygrometer with App connection

testo 625
testo 625
testo 625
testo 625
testo 625
testo 625
testo 625
testo 625
The testo 625 is a compact digital thermohygrometer for quick and precise measurement of air temperature and humidity. Featuring Smart App connectivity, it allows seamless configuration, real-time data display, and easy documentation. With dew point and wet bulb temperature calculations, plus an audible alarm for threshold breaches. Ideal for indoor air quality assessment and storage condition monitoring.
  • Fast & Accurate Measurements – Measures air temperature and relative humidity with precision.
  • Smart App Integration – Enables configuration, graph history, second screen display, and data storage.
  • Dew Point & Wet Bulb Calculation – Provides key climate data for environmental monitoring.
  • Real-Time Alerts – Audible alarm signals when limit values are exceeded.
The testo 625 Digital Thermohygrometer is a powerful yet compact tool for measuring air temperature and relative humidity with high precision. Designed for professionals in HVAC, indoor air quality assessment, and storage monitoring, the device provides real-time environmental data to ensure optimal conditions.

One of its standout features is Smart App connectivity, allowing users to configure the device, view real-time graphs, store measurement data, and even use their smartphone as a second screen for remote monitoring. The testo 625 also calculates dew point and wet bulb temperature, making it an essential tool for climate control applications.

For added convenience, the built-in audible alarm alerts users when predefined temperature or humidity limits are exceeded, ensuring timely intervention. Compact and easy to use, the testo 625 is the perfect solution for professionals who need fast, reliable, and connected climate measurement technology.

Temperature - NTC

Measuring range
-20 to +60 °C
Accuracy
±0.5 °C
Resolution
0.1 °C

Humidity - Capacitive

Measuring range
0 to 100 %RH
Accuracy
2.5 %RH (5 to 95 %RH)
Resolution
0.1 %RH

General technical data

Weight
199 g
Dimensions
208 x 60 x 28 mm
Probe: 12 x 15 mm
Operating temperature
Probe: -20 to +70 °C
-20 to +50 °C
Product-/housing material
ABS + PC / TPE
Protection class
IP20
Battery life
100 h
Battery type
3x AA
Storage temperature
-20 to +50 °C
  • testo 625 - Humidity/temperature measuring instrument with App connection and audible alarm, incl. transport bag
  • Calibration protocol
  • 3 x AA batteries
  • not available
  • not available
  • not available
Contact Us
Testo Ltd
Newman Lane
GU34 2URAlton
HampshireUnited Kingdom
01420 544433

Opening hours

Monday-Thursday: 8:30am - 17:00pmFriday: 8:30am - 16:00pm
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