Main Features:  1. Realize remote control on smart life APP through mobile phone network or WIFI.  2. Real-time monitoring of environmental brightness, and use it with other Tuya Zi-bee or WIFI devices to realize automatic scene applications.  3. Use with Zi-bee gateway.    Parameters:  Working voltage: DC 3V;  Quiescent current: ≤10uA;  Alarm current: ≤20mA;  Communication method: Zi-bee;  Transmission distance: 10～30m (without shelter indoors);  Reference range: 0-1000lux (satisfies the home office);  0-100lux: sensitivity 5lux;  100-1000lux: sensitivity 50lux;  (Note: There is a fluctuation deviation of about 10% depending on the environment);  LED indicator: YES;  Installation method: 3M glue or screw fixing;  Battery: AAA alkaline battery 1.5V*2;  Working temperature: -10℃～50℃;  Working humidity ≤95% (no condensation);  Report frequency: half an hour;    Package Includes:  1 * WIFI Illumination Sensor