EWelink Smart ZigBee Door & Window Sensor — Works with MQTT, Smart Things Hub, Alice | Ewelink App Monitoring, Easy Install

EWelink Smart ZigBee Door & Window Sensor — requires a ZigBee wireless hub to operate. Once paired with a ZigBee hub, the sensor sends real-time alerts to your smartphone whenever it detects external objects or animals, so you can monitor your home from anywhere. Battery-powered for low power consumption, it uses hall sensing technology and includes tamper protection plus a low battery reminder. Installation is simple: use the included double-side tape to stick the sensor wherever you need. It also supports intelligent linkage with other smart devices to create automated scenes and expand your home security setup.