Testo 635 1 Temperature and Humidity measuring instrument

Test-meter.co.uk

Testo 635-1 multifunction air quality metre. Measures temperature, humidity, dew point with up to 2 conventional/3 radio probes. IP54 rated, large digital display, 200hr battery. Compatible with optional radio module for wireless measurement.

Amazon

Testo printer for documenting measurement data on site Cyclical printing of readings once a minute, for example Measures air moisture, material equilibrium moisture, pressure dew point Protection class IP54