White-Rodgers 1F78-144

This non-programmable digital thermostat from white-rodgers includes two aa energizer alkaline batteries. The batteries power the unit’s first-stage heat and first-stage air. Heating and coolingthe unit provides first-stage heat no auxiliary heat for gas, oil, electric, and heat pump systems. It provides first-stage cooling for compressor systems. Features include: lcd with backlightselectable celsius/fahrenheit temperature displayb/o terminalselectrical accuracythe 70 series thermostat is the perfect upgrade from a mechanical thermostat because of its electrical accuracy and the fact that it doesn’t require an extra wall plate. It’s also compatible with all millivolt systems and provides accurate readings.