It's Easy - Universal compatibility means it works on all system types. Screwless, color coded wire terminals, built-in level bulb and all purpose screws mean you can install it in 5 minutes - really! And Hunter's patent-pending programming interface means you can program it in 25% fewer steps than other thermostats. It's Convenient - With 5-1-1 Programmable Plus capability, you can set up to four daily programs for the work week and up to four programs per day for each day of the weekend - Saturday and Sunday - truly customizing the program to fit your lifestyle. It's Smart - With a feature exclusive to Hunter, it helps you save money. The Save Away one-touch override lets you adjust the temperature for times you are away - giving you even more opportunities to save. And it's all controlled with an easy-to-use backlit interface which makes saving money a breeze!