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: ≥15mm 6. Standby Current: ≤23uA 7. Illumination Range: 0~1000 LUX 8. Accuracy: 50 LUX 9. Battery Type: CR2032 10. Standby Time: ≥12 Months 11. Working Temperature: -10~55℃ 12. Working Humidity: 0%~99%RH 13. Product Size: 50x25x11mm (Host); 30x15x10mm (Magnetic Strip) 14. Tuya Smart APP: Support Smart Life APP, Tuya Smart APP(With Zigbee Gateway) 15. Intelligent Linkage: Support 16. Installation: Adhesive Paste 17. Historical Record: You Can View Historical Alarm Information And 18. Linkage Record Information 19.Colour:White 20.Material:ABS Package Contents: 1 x Host 1 x Magnetic Stripe 1 x Chinese And English Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.