Installed on the indoor wall. Temperature range: +5/+40 degrees Celsius. Applied to space heating automatic control system. Indicator light is on when heating. Meets the requirements of 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: 3 Meter Switch difference: ±1 Ambient temperature: -5-50 Protective cover: IP20 Casing material: Flame retardant PC External dimensions (height/width/depth): 86/86/35mm Features a temperature scale, dial, and switch on the panel. Designed for simple operation and long-term reliability, suitable for children and the elderly. Moderately priced. Color: Black Material: Plastic Package Contents: 1 x 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 to differ slightly from the real thing. Measurement allowed error is +/- 1-3 cm.