Installed on the indoor wall surface. Temperature range: +5/+40 degrees Celsius. Applied to space heating automatic control system. Indicator light is on when heating. Meet the requirements of safety, energy saving and comfort. Voltage:220-240VAC 50/60Hz Load current:16A Power consumption:Less than 2VA Temperature setting range:5-40 External sensor:B=3950 10K @ 25 Wire length:3Meter Switch difference:plusmn1 Ambient temperature:-5-50 Protective cover:IP20 Casing material:flame retardant PC External dimensions (height/width/depth):86/86/35mm There 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 durable. Colour:White/Black Material:Plastic Package Contents: 1 * room temperature regulator Only 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.