Honeywell 5-2-Day Electronic Programmable Thermostat: * Large backlit display * Easy to use * Smart Response Technology * 1 program for the weekdays * Separate program for Saturday and Sunday (up to 4 periods per day) * Program to save up to 33 percent on annual heating and cooling costs (if used as directed) * Savings may vary depending on geographic region and usage * Straightforward display and buttons keep operation and programming simple * Easy-to-read display, even in dimly lit rooms and hallways * Continually adjust the pre-heating/cooling of your home, so you are comfortable at your programmed times * Compatible with heating and cooling, plus heat pumps * Does not work with electric baseboard heat (120-240V) * 1-year warranty