1F85U-42PR White Rodgers Blue Multi Stage 2H/2C Conv. or

Blue Multi Stage 2H/2C Conv. or 4H/2C Heat Pump. Programmable 7, 5+1+1, 0 Digital Thermostat, Backlit Display, 24 Volts or Millivolt, EMR Recovery, Filter Change Reminder, System Switch Heat, Off, Cool, Auto, Fan Switch-Auto, On, Dual Power (R-C) And/or Batteries.