Tuya Smart Sensor Door Window Sensor Smart WiFi Sensor Door Window Alarm App Remote Control Alarm Family Children Elderly Protection Garage Garden USB Powered or Battery Powered

*Using the principle of magnetic control, real-time monitoring of the opening and closing status of doors and windows.The mobile APP can receive push messages in real time, and calmly deal with abnormal situations. Compatible with third-party platforms: Alexa Echo and google home. *Do not need home gateway, you can easily achieve the intelligent control of home appliances, simple operation, easy to use. 2.4 GHz protocol is more stable, faster and more convenient. *Anti-dismantle function: When disassembling with external force, push alarm notification to your smartphone.Make your door/window smarter: When you leave home, it will push notification to you if the doors or windows are opened or invaded by external, you will find anomalies in your home immedistely. *Small and compact appearance: Reasonable size design, optimize the internal sturcture , which bring you convenience , beauty and enjoyment. *Large capacity more durable: Full of power long durable , replace the battery is simple.The appearance is simple and stylish, and can be matched with various decoration styles.Smartphone Remote control to make your home smarter. No matter how far away from home, the warmth of home is in hands. *Two choices of battery and USB powered. (Built-in battery) Free APP: Tuyasmart or Smart Life Battery:CR123A 3V USB Power supply :5V/1A Standby current :27.9uA Wireless frequency: 2.4GHz Wireless standard: IEEE 802.11b/g/n Wi-Fi range: 45M Size:Main body: 82mm x 27mm x 23mm Deputy body: 50mm x 13mm x 16mm