WHITE-RODGERS™ Programmable Thermostat, Classic 80 Series, 30 VAC Battery, 20 to 30 VAC Hardwire, 1 to 1.5 A, 50/60 Hz Frequency, Programmability: 5-1-1, 7 day Program, Changeover: Manual, Battery, Hardwired Power Source, 1 Heat/1 Cool Stages, Switch Position: HEAT-OFF-COOL (System), AUTO-ON (Fan), 0.6 deg F or 1.5 deg F Heating, 1.2 deg F Cooling Conventional Systems, 0.75 deg F or 1.2 deg F Heating and Cooling Heating Pump Differential, 45 to 99 deg F Settings, 32 to 105 deg F, 90% Non-Condensing Humidity, +/-1 deg F Accuracy, Horizontal Mounting, Terminal Designation: RC, RH, C, W, Y, O/B, G, (2) AA Alkaline Battery, White, Dimensions: 3-7/8 in H x 6 in W x 1-3/16 in D