White-Rodgers 1F85U-42PR Thermostat

20-30Vac Hardwire or mV-30Vac Battery, 7 Day or 5+1+1 Day Programmable or Non-Programmable, 4 or 2 or 0 Periods Per Day, 2 Heat/2 Cool Conventional or 4 Heat/2 Cool Heat Pump, 45-99 degree F Setpoint, 80 Series Universal Staging/Heat Pump Electronic Thermostat with Auto Changeover, Dual Fuel Control, and Keypad Lockout

1F85U-42PR is the direct replacement for 1F85-0477, 1F85-0471, 1F85-277