Line volt 7-day programmable thermostat for electric heat. These compact, stylish thermostats come loaded with advanced programming features and a large backlit LCD. Advanced temperature control ensures total comfort by minimizing temperature swings. ON/STANDBY switch enables thermostat shutdown at the end of heating season for added security. On-screen heating power indicator gives at-a-glance verification of power being used. Early start function ensures programmed temperature is reached by programmed time. Temporary bypass enables temperature override without changing programming. Attractive design includes hidden programming buttons. Battery-free backup means no re-programming your schedule after a power outage.