The TH114 Series delivers the features that matter most in a non programmable thermostat: an easy to read backlit display, slim contemporary design and precise temperature control. Advanced temperature control ensures total comfort by minimizing temperature swings. Its 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. It has a backlit display and is battery free.