• Easy To Read Hygrometer
• Metal Bezel and Calibration Screw
• Humidity: 0 to 100% RH
• Diameter: 3.25 in. (8.5 cm)
• Made in Germany

Analog Hygrometer 3.25 inch Diameter with Brushed Aluminum Dial and Bezel. The dial shows the current relative humidity level as a percentage. The scale features in blue, green and red print the danger and safety zones.