● Non-programmable digital thermostat. ● Backlit digital display - both current and set temperatures are easy to read in various lighting conditions. ● Shows both current and set temperatures at the same time. ● Precise comfort control [± 1 F (± 0.5 C)] - maintains consistent comfort to the highest level of accuracy. ● Basic operation - easy-to-use slide switches allow you to select the heat or cool mode, and operate the fan. Description：Non-programmable Digital Thermostat Application：2 Heat/1 Cool Heat Pump Systems Mounting：Horizontal Changeover：Manual Color：Premier White Stages：2 Heat/1 Cool Heat Pump Power Method：Dual Powered: Battery or Hardwire Terminal Designations：R, Y, AUX, E, G, O, B, L, C Switch Positions (Fan)：AUTO-ON Switch Positions (System)：HEAT-OFF-COOL-EM. HT Switch Type：Relay Accuracy (F)：±1 F Accuracy (C)：±0.5 C Dimensions (in.)：3 13/16 in. High X 5 3/8 in. Wide X 1 1/4 in. Deep Dimensions (mm)：97 mm High X 137 mm Wide X 32 mm Deep Setting Temperature Range (F)：Heat: 40 F to 90 F; Cool: 50 F to 99 F Setting Temperature Range (C)：Heat: 4.5 C to 32 C; Cool: 10 C to 37 C Electrical Ratings：20 to 30 Vac or 750 mV Frequency：50 Hz Frequency：60 Hz Cycles per Hour：Heating 1-12 CPH; Cooling 1-6 CPH Cool Current：0.02 A to 1.0 A running Heat Current：0.02 A to 1.0 A running Sensor Element：Thermistor Operating Humidity Range (% RH)：5 to 90% RH, non-condensing Display Size：1.32 sq. in. Voltage：20 to 30 Vac