WHITE-RODGERS™ Thermostat, mV to 30 VAC Battery, 20 to 30 VAC Hardwire, 1.5 to 2.5 A, 50/60 Hz Frequency, Programmability: 5-1-1, 7 day Program, Changeover: Auto, Battery, Hardwired Power Source, 1 Heat/1 Cool, 2 Heat/1 Cool Heat Pump Stages, Switch Position: HEAT-OFF-COOL-AUTO (System), AUTO-ON (Fan), 12 sq-in Universal Touchscreen Display, 0.6 deg F Heating, 1.2 deg F Cooling Differential, 45 to 99 deg F Settings, 32 to 105 deg F Ambient, 90% Non-Condensing Humidity, +/-1 deg C Accuracy, Horizontal Mounting, Terminal Designation: RC, RH, C, W/E, Y, O, B, L, G, +, S, -, 6, (2) AA Alkaline Battery, White, Dimensions: 4.6 in H x 5.9 in W x 1.2 in D