Real-time monitoring of every opening and closing of doors and windows Setting Scene linkage with zigbee smart gateway and other smart products (Such as lights, cameras, switches) Low battery warning, promptly reminding battery replacement Measure the brightness of light Lighting range: 0 - 10000 LUX Accuracy: 50 LUX Wireless protocol: Zigbee 3.0 Working voltage: 3V Sensing distance: ≥ 15mm Battery type: CR2032