With the HT-04 series plug-in thermostat, E-top Controls offers a maximally flexible solution for controlling infrared heating panels and other electric heaters or air-conditioning units. Simply plug the device in and connect your electric heater or air conditioner to the socket. Right away, an individually defined heating program can be started. Based on the day of the week and the time of day, you can select a target temperature between 5 - 35°C, which your heating or air-conditioning unit will maintain automatically from then on. For program type, up to 4 temperature changes can be programmed daily. Highlights of the thermostat include window-open detection, a frost protection function, child lock and an EEPROM backup memory for your settings. E-Top HT-04 series universal plug thermostat, the flexible universal thermostat for a comfort temperature and heating cost savings of up to 10%!   E-Top plug socket thermostat list:   a.     Programmable Plug socket thermostat     b.     Non-programmable plug thermostat   c.     Smart plug in thermostat for infrared heater  d.     Smart Plug thermostat with external sensor    e.     Wireless thermostat with plug socket receiver