Dial provides humidity and temperature readings in an easy-to-read dial format. It is ideal for constantly monitoring labs, fume hoods, walk-ins, plant areas, and storage facilities. Large, 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, accurate unit requires no adjustment, maintenance, or battery. Complete with screw for wall mounting. Size is 6-inch diameter x 1 inch. Weight is 8 ounces.