White-Rodgers 1F89-211 Digital Backlit Low Voltage Thermostat

White-Rodgers 1F89-211 Digital Backlit Low Voltage Thermostat Utilizes solid-state microcomputer technology for precise temperature control Simultaneous heat and cool setpoint storage Setpoint storage in case of power loss Easy-to-read LCD continuously displays setpoint and room temperature Continuous backlit display option Temperature range of 45°F to 90°F Compatible with R, C, Y, W2, G, O/B, E, and L terminals for single or two-transformer systems Optional "AA" batteries for continuous temperature display during AC power loss