WHITE-RODGERS™ Thermostat, 80 Series, 30 V Battery, 20-30 V Hardwire, 1 to 1.5 A, 50/60 Hz, 1 Cool/1 Heat Stages, Heat-Off-Cool (System), Auto-On (Fan) Switch Position, 4.5 sq-in Display, 0.5 deg F at 6 deg F/hr Fast, 0.75 deg F at 6 deg F/hr Medium, 1.9 deg F at 6 deg F/hr Slow Heating, 0.9 deg F at 6 deg F/hr Fast, 1.2 deg F at 6 deg F/hr Medium, 1.7 deg F at 6 deg F/hr Slow Cooling, 0.9 deg F at 6 deg F/hr Fast, 1.2 deg F at 6 deg F/hr Medium, 1.7 deg F at 6 deg F/hr Slow Heating Pump (Heating and Cooling), 0.5 deg F at 6 deg F/hr Fast, 0.75 deg F at 6 deg F/hr Medium, 1.9 deg F at 6 deg F/hr Slow Heating Pump (Auxiliary) Differential Temperature, 45 to 99 deg F Temperature Settings, 32 to 105 deg F, 90% Non-Condensing Humidity Rating, AA Battery, +/-1 deg F Accuracy, Battery, Hardwired, Horizontal Mounting, 3-3/4 in H x 6 in W x 1-1/8 in D, Plastic, White