The testo 635-1 temperature and humidity measuring instrument enables you to measure the temperature, air humidity and dew point – in compressed air as well. State-of-the-art technology and a large selection of probes, which are available as an option, enable this wide variety of measuring possibilities.
Probes available as an option mean you can measure air humidity, temperature, absolute pressure and dew point in compressed air
Two plug-in probes and 3 radio probes can be attached