Bought the wrong item. Box is open but the thermostat has not been installed. Honeywell Home Honeywell Home 5-2 Day Programmable Thermostat Model # YRTH2300B1130/U The Honeywell 5-2 Day Programmable Thermostat has a simple interface and offers separate weekday and weekend programming. It continually adjusts the pre-heating or cooling of your home so you are comfortable when you wake up, come home or at any other time you prefer. 5-2 programming with 4 periods per day Accurate temperature control of +/- 0.50C Backlit display for easy viewing even in dimly lit rooms or hallways Easy access battery compartment