Analog Hygrometer 1.75 in. Diameter Round with Gray Scale and Chrome 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.
- Easy To Read Hygrometer
- Maintains An Accurate Measure Of Humidity
- Metal Bezel and Calibration Screw in Back
- Keyhole on back for wall-mounting
- Diameter: 1.75 in. (4.5 cm)
- No batteries needed
- Made in Germany