Provides humidity and temperature readings in an easy-to-read dial format. Large, easy-to-view analog readout displays 0 to 100% relative humidity and temperatures from -40 to 122°F (-40 to 50°C). Resolution is 1% RH and 1°. Accuracy is ±2.5% RH at 50% RH and ±1.5°C. Self-contained, stable, and accurate unit requires no adjustment or maintenance. Complete with screw for wall mounting. Size: 6-inch diameter x 1 inch.