Fangrui Product Details 1. Zigbee3.0 Wireless Protocol; Detect Light In The Environment 2. Support Custom Lighting Range, Intelligent Linkage Equipment; Sensitive Hall Sensor, Fast Detection 3. Quickly Add Devices With One Key; Super Long Standby Time 4. Multi-scenario Installation And Use 5. Support Intelligent Linkage With Other Devices; Easy To Install And Easy To Use Product Positioning: Widely Used In Rooms, Shops, Convenience Stores, Finance Rooms, Villas, Communities And Places Where Valuables Are Stored, In Order To Detect Whether Doors, , Drawers, Etc., Are Opened Or Illegally Moved. Description: 1. Button: One Button 2. Working Voltage: 3v 3. Wireless Protocol: Zigbee 3.0; Wireless Distance 50 Meters (open Space) 4. Indicator Light: Red Indicator Light 5. Sensing Distance: 5mm 6. Standby Current: 3ua 7. Illumination Range: 0~1000 Lux 8. Accuracy: 50 Lux 9. Battery Type: Cr2032 10. Standby Time: 2 Months 11. Working Temperature: -10~5512. Working Humidity: ~rh 13. Product Size: 50x25x11mm (host); 30x15