Installed on the indoor wall .Temperature range: +5+40 degrees Celsius.Applied to space heating automatic control system.Indicator light is on when heating.Meet the requirements of , energy saving and comfort.Voltage:220-240VAC 5060HzLoad current:16APower consumption:Less than 2VATemperature setting range:5-40External sensor:B=3950 10K @ 25Wire length:3MeterSwitch difference:plusmn1Ambient temperature:-5-50Protective cover:IP20Casing material:flame retardant PCExternal dimensions (heightwidthdepth):868635mmThere is a temperature scale, dial, switch on the panel. Due to its simple operation, good long-term reliability, it is more suitable for children and the elderly, moderately priced and .Colour:BlackMaterial:PlasticPackage Contents:1 * room temperature regulatorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +- 1-3cm.