4 Heat/2 Cool Programmable Digital Thermostat, Programmability:7-Day, 52 Day or 1 Day Programming, Gas, Electric or Heat Pump Control, Scrolling Display Instructions Make Setup Easy, Scrolling Display Can Show Dealer Name, Phone Number and Alerts, Adjustable Timers and Deadbands Between Stages, Outdoor Sensor Ready With High/Low Readouts for the Day, Programmable Fan, Control to, Or Monitor 2nd Temperature Sensor, Comfort Recovery, Dims:1"H X 5-3/8"W X 4-3/8"D,