Honeywell RTH6400D 5-1-1-Day Programmable Thermostat

Large backlit display with soft-touch button interface Precise temperature control of plus-or-minus-degrees Fahrenheit with auto change from heat to cool Energy Star Rated 5-1-1 programming with 4 programmable periods per day Exclusive Honeywell Smart Response Technology and filter change reminder Compatible with heating and cooling system plus single stage heat pump systems