Installed on the indoor wall. Temperature range: +5/+40 degrees Celsius. Suitable for space heating automatic control systems. Indicator light illuminates when heating. Meets safety, energy saving, and comfort requirements. 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 meters. Switch difference: ±1℃. Ambient temperature: -5 to 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. Simple operation and long-term reliability make it suitable for children and the elderly. Color: Black. Material: Plastic. Package includes: 1 x Room temperature regulator. Package contents are limited to the items listed; other products are not included. Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance: +/- 1-3cm.