Image
  1. Home
  2. testo 608-H2
0560 6082

testo 608-H2 - Humidity/dewpoint/temp. Monitor

Image
The testo 608-H2 thermo hygrometer offers continuous monitoring of temperature, humidity, and dew point. Featuring a large display and visual alarm for threshold alerts, this device is ideal for spaces like garden centres, offices, and storerooms.
  • Reliable Long-Term Measurement – Features a long-term stable humidity sensor for accurate and consistent results.
  • Accurate Temperature Measurements – Provides temperature accuracy of ±0.5°C, ensuring precise data for indoor climate control.
  • Clear and Large Display – Readings are easily visible from a distance on the large, user-friendly display.
  • Dew Point Calculation – Instantly calculates and displays the dew point, helping you maintain optimal conditions.
  • Max/Min Value Display – Easily view minimum and maximum temperature and humidity readings at any time.
The testo 608-H2 thermo hygrometer is designed for those who need to continuously monitor indoor climate conditions such as temperature, humidity, and dew point. Perfect for environments like garden centres, offices, storerooms, and laboratories, the testo 608-H2 provides up-to-the-minute readings to help ensure optimal conditions.

This compact, unobtrusive device offers a large, clear display, making it easy to read measurements from a distance. It also includes a visual LED alarm that is triggered when temperature or humidity exceeds the predefined upper or lower threshold. You can customize both thresholds for maximum flexibility.

The testo 608-H2 is equipped with a high-precision, long-term stable humidity sensor that guarantees reliable readings over time. In addition, it allows for easy viewing of min./max. values, providing a comprehensive overview of environmental changes.

With wall and table mounting options, this hygrometer can be placed conveniently in any space, offering flexibility in positioning. The device boasts a battery life of around one year and a battery status indicator, ensuring you know when it's time to replace the batteries.

The testo 608-H2 is the ideal choice for users who want an easy-to-use, reliable device to monitor their indoor climate without the need for data logging or complex documentation.

Temperature - NTC

Measuring range
-10 to +70 °C
-40 to +70 °Ctd
Accuracy
±0.5 °C (at +25 °C)
Resolution
0.1 °C

Humidity - Capacitive

Measuring range
2 to 98 %RH
Accuracy
long-term stability: ±1 %RH / year
±0.06 %RH/K (k=1)
±2 %RH (2 to 98 %RH)
Resolution
0.1 %RH

General technical data

Weight
168 g
Dimensions
111 x 90 x 40 mm
Operating temperature
-10 to +70 °C
Measuring rate
18 s
Product-/housing material
ABS
Battery type
9V block battery, 6F22
Battery life
approx. 1 year
Display type
LCD (Liquid Crystal Display)
Display size
2 lines
Storage temperature
-40 to +70 °C

testo 608-H2 - Thermohygrometer, calibration protocol, batteries.

Contact Us
Testo Ltd
Newman Lane
GU34 2URAlton
HampshireUnited Kingdom
01420 544433

Opening hours

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

Visit our blog

© 2026