Feature rich programmable non programmable all in one thermostat, all-in-one programmablenon-programmable, Universal heat pump & conventional heatcool, Dual power. Features Easy Installation, Program 7-day or non-programmable, Special-day programming, Easy-view back light, Optional wall plate model #WP567, User option: 2 or 4 periods per day, Programmable keypad lockout, Temporary override and manual hold, Dual powered (2AA) Alkaline batteries (included), Temporary compressor protection bypass, 52 minute selectable time delay for equipment protection, User temperature calibration, Display option: Fahrenheit or Celsius temperature, Adjustable heating and cooling limits, Speed Slide® for easy programming, Air filter monitor, Selectable smart recovery, AMPM clock or military time option, Adjustable temperature differentialswing.