Emerson 80 Series 4.5" Display, Single Stage (1H/1C) With Program Choices: 7 Day, 5+1+1 Day or Non-Programmable Digital Thermostat; Backlit Display, 24 Volts or Millivolt, System Switch-Heat, Off, Cool, Fan Switch-Auto, On, Keypad Lockout, Temperature Limits, Profile-Horizontal, Dual Power: Hardwire and/or Battery, Range 45-99º F. Terminals-RH,RC,C,W,Y,G,O/B. Accessories: Wallplate F61-2663 (Sold Separate)