WHITE-RODGERS™ Thermostat, 70 Series, 20 to 30 VAC, 1 to 1.5 A, 1 to 45 W Power, 50/60 Hz Frequency, Programmability: 5-2 day Program, Hardwired Power Source, 2 Heat/1 Cool Stages, Switch Position: HEAT-OFF-COOL-EMERGENCY (System), AUTO-ON (Fan), 1.2 sq-in Display, 0.8 deg F Fast, 1.5 deg F Slow Heating, 1.2 deg F Fast Cooling Fixed, 1.2 deg F Fast, 1.5 deg F Slow Heat Pump, 0.8 deg F Fast, 1.2 deg F Slow Auxiliary/Emergency Heating Differential, 45 to 90 deg F Settings, 32 to 105 deg F Ambient, 90% Non-Condensing Humidity, +/-1 deg C Accuracy, Horizontal Mounting, Terminal Designation: R, C, W2, EY, O/B, G, L, (2) AAA Battery, White, Dimensions: 3-7/10 in H x 5-1/10 in W x 1-1/10 in D