The 5-2 Day Programmable Thermostat is easy to use and features a large backlit display, user-friendly controls and key features such as Smart Response technology. If you want a thermostat that’s easy to use but offers options in programming and key features, this is it. Our 5-2 Day Programmable Thermostat delivers on all counts. You’ll like the large backlit display that’s easy to read, even in dim light. You can program it to fit your lifestyle — week and weekend, plus up to four periods per day. Programming adds to your comfort level and subtracts from your energy bill. Smart Response technology continually adjusts heating/cooling to arrive at the right temp at your programmed time.