Digital hygrometers use sensors to detect changes ... vapor the air can hold at a given temperature. This is called relative ...

Thermopro Tp55 Digital Room Thermometer Temperature and Humidity Monitor This hygrometer will show the ... this means that the relative humidity is somewhere between 50 and 60%rh.

A capacitor type of hygrometer is usually used to measure relative humidity. The sensor has a ... which is then converted to digital. The self-emptying tipping bucket technology is most often ...