The Timeguard TRT05 Electronic Plug-In Thermostat with 24-Hour Time Control is a white rectangular thermostat with digital control style. It is powered by batteries and has a voltage of 230V. The thermostat is compatible with wall heaters and has 3 heat stages for programmable control. It has a temperature sensor technology and offers 3 periods per programmable day for efficient heating management. Made of plastic, this programmable thermostat by Timeguard is a convenient and reliable choice for home heating systems.