Features: 1.Accurate Light Measurement: Equipped with a smart home light illuminance sensor, this device continuously monitors ambient brightness in real time, ensuring optimal indoor lighting by automatically adapting to changing environmental light conditions. 2.Automated Scene Activation: Featuring a light brightness detection sensor, the system can trigger actions such as closing lights and opening curtains when certain light thresholds are detected, creating seamless automation for effortless comfort. 3.Continuous Monitoring: The outdoor lux detector provides ongoing light intensity tracking, maintaining ideal brightness levels and quickly responding to fluctuations, making it ideal for dynamic home environments. 4.Reliable Outdoor Performance: Designed with IP67 waterproof protection, the light sensor is tailored for outdoor installation, accurately supporting connectivity between smart curtains or lighting systems in places like balconies and gardens. 5.Energy-Saving Integration: The brightness detector enables efficient use of natural daylight, reducing unnecessary power consumption by turning off artificial lights when natural light is sufficient. Requires for Zigbee gateway for full functionality. Specification: Operating Voltage: DC 3V Battery Type: for CR2450 Standby Current: 6uA Detection Range: 0-1000 lux Detection Angle: 120° Waterproof Rating: IP67 Operating Temperature: -10°C to 55°C Operating Humidity: 0-95% RH Product Dimensions: 44*41*25mm / 1.73x1.61x0.98 (inch) Packaging Dimensions: 54*46*35mm Net Weight: 22g Gross Weight: 31g