Save on your heating bills this winter! This unit will pay for itself within a few weeks or months, depending on your use. The Honeywell RTH7600D 7-Day Programmable Touch Screen Thermostat offers heightened levels of flexibility. This programmable thermostat utilizes a green backlit touch screen interface with simplified programming and easy to read text instead of complex and difficult to understand symbols. Smart Response Technology continually adjusts the pre-heating/cooling of your home to achieve maximum comfort at your personally selected times. This programmable thermostat also automatically determines whether or not your home needs heating or cooling based on the surrounding temperatures. This 7-Day programmable thermostat features a large touch screen interface with simplified programming and easy to read text instead of complex and difficult to understand symbols. Smart Response Technology continually adjusts the pre-heating/cooling of your home to achieve maximum comfort at your personally selected times. This programmable thermostat also automatically determines whether or not your home needs heating or cooling based on the surrounding temperatures. This 7-Day programmable thermostat features a large touch-screen display and Smart Response Technology. The thermostat will automatically adjust the heating/cooling of your home, so you're comfortable at your programmed times. With Auto Change from Heat to Cool, the switch from heating to cooling is automatic. Easy-to-use, extra-large backlit touch screen display with menu-driven programming. Precise temperature control of +/-1 degrees Fahrenheit with auto change from heat to cool. Selectable temperature range stops. Auto change from heat to cool. 7 day programming (Program up to 4 periods per day (wake, leave, return, sleep). Smart Response Technology with filter change reminder and low battery indicator. Compatible with heating and cooling plus heat pump systems. Does not work with electric baseboard heat systems (120-240V).