White-Rodgers 1F85U-42NP, 5″ Display, Universal Single Stage, Multi-Stage (2H/2C) Or Heat Pump (4H/2C) With Dual Fuel Option. Non-Programmable Digital Thermostat; Backlit Display, 24 Volts Or Millivolt, System Switch-Heat, Off, Cool, Auto Changeover, Aux/Emer, Fan Switch-Auto, On, Keypad Lockout, Temperature Limits, Profile-Horizontal, Dual Power: Hardwire And/Or Battery, Range 45-99ºF
