Air humidity
Testo hygrometers/thermo-hygrometers, comes in versatile mounting versions and portable hand held versions. All our hygrometers/thermo-hygrometers use a state of the art patented capacitive humidity sensor what has been continually developed since 1957. Below you will find an overview of Testo Hygrometers. Didi you know: In the past.. Capacitive sensors were considered non-robust and instable Today.. The testo Capacitive sensor has been proven one of the most reliable and accurate sensors in the world.