Luxury totally silent Line Voltage Thermostat for electric heaters - Stelpro STE302NP-W Controls up to 3,000 watts. a 240 v, 208 v, & 120 volt thermostat, non programmable digital display with backlight screen. A temperature range of 37&deg;F to 86&deg;F Easy to use and install for home electric heaters, silent operation with no annoying clicking noise Room Temperature Range 37F to 86F with the most accurate temperature control of  0.36F Controls 120 volt or 240 volt electric baseboard, fan forced wall or ceiling heater & convection Controls up to 3000 watts at 240 volts or 1,500 watts with 120 volt power supply LCD Screen is easy to read at a glance, does not require programming