7-day menu-driven programming with 4 periods per day Universal compatibility – works with virtually all system types Large backlit touchscreen display shows room temperature, set temperature and current time all at once Maximum comfort – Smart Response Technology learns the amount of time a system needs to reach a desired temperature and adjust accordingly Ships in Certified Frustration-Free Packaging Auto change from heat to cool Touch screen 7 Day Programmable Thermostat Extra large backlit touch screen display for precise temperature control Honeywell touch screen 7-day programmable thermostat provides maximum flexibility for busy lifestyles and can save you up to 33 percent off your energy bill. You set it up to adjust the temperature when you are away or asleep during times when you don’t necessarily need to heat or cool your home to optimum comfort, and your heating and cooling equipment runs less. The RTH7600D features a green backlit touch screen interface with simplified programming and easy to follow text instead of symbols. Exclusive Honeywell Smart Response Technology continually adjusts the pre-heating/cooling of your home so you are comfortable at your programmed times. It also automatically determines if your home needs heating or cooling to provide maximum comfort. Universal compatibility means it works with virtually all system types.