Emerson 70 Series Economy Single Stage (1H/1C) Non-Programmable Digital Thermostat, Backlit Display, 24 Volts or Millivolts, System Switch-Heat, Off, Cool, Fan Switch-Auto, On, Profile-Horizontal, Battery Powered, Range 45-90?? F., Terminals-RC,RH,W,Y,G,O, B. Accessories; Wallplate F61-2550