Hygrometer
A tool for measuring the humidity of the air.
Hair Hygrometer
Measures atmospheric relative humidity by means of the variation in length of a bundle of human hairs as they adsorb atmospheric water vapour.
Hygrograph
A recording-type hygrometer.that produces a permanent hygrogram.
See also: Dew Point Hygrometer, Humidity, Hygristor.
Subjects: Meteorology Physics