Precision Hair Hygrometer

Hygrometer for measuring the relative air humidity, consisting of a round plastic housing with a synthetic hair as the measuring element. The specially treated hair exhibits an almost inertia-free response to changes in humidity. Wall-mountable.
Measuring range: 0% – 100% relative humidity
Temperature range: - 35° C – + 65° C
Reading accuracy: ± 5%
Diameter: 100 mm