Hokco Analog Hygrometer Humidity Gauge

Easy To Read Hygrometer Maintains An Accurate Measure Of Humidity Metal Bezel and Calibration Screw Clear Plastic Compression Mounting Ring Keyhole on back for wall-mounting Diameter: 1.75 in. (4.5 cm) No batteries needed Made in Germany Analog Hygrometer 1.75 in. Diameter Round ...Easy To Read Hygrometer Maintains An Accurate Measure Of Humidity Metal Bezel and Calibration Screw Clear Plastic Compression Mounting Ring Keyhole on back for wall-mounting Diameter: 1.75 in.

(4.5 cm) No batteries needed Made in Germany Analog Hygrometer 1.75 in. Diameter Round with Gray Scale and Metal Bezel. Analog Spiral hygrometers are the most commonly used hygrometers.

The measuring element consists of a spiral shaped metal strip that reacts to changes in the humidity. A clear plastic compression mounting ring is included to help mount the unit into a wooden plaque for example. <