Features: Place light sensors beside windows, walls, doors, etc. It can sense the change of light and illumination, and control other intelligence equipment makes life convenient and comfortable. The light sensor is sensitive to the fading light and automatically lights up in time, protect your eyes. When the indoor light is sufficient, the light sensor will automatically turn off the light, which is energy-saving and environmentally friendly. When the indoor light intensity is high, the light sensor will automatically close the curtain to prevent the western sun from damaging the furniture and valuable cosmetics. Support for stronger Zigbee 3.0 protocol, Higher security, Higher openness and compatibility, Complete solution, More stable network, low power consumption. Specifications: Item: Light Sensor Color: White Shell Material: ABS Temperature measurement range: - 10 ~50 Detection range: 0-83000lux Wireless Connection: Zigbee 3.0 Operating humidity: 0-95% RH, non-condensing Detection accuracy: ± 2% Size: 40*40*17mm Packing Size: 7.7*7*3cm Packing Weight: 42g Note: Support for English. Replacement for Xiaomi, Green Mi Zigbee 3.0 gateway devices, and not compatible with graffiti gateways( Different brands may not be compatible for use). Package List: 1* Light Sensor