Feature:1. Real Time Alarm: WiFi door window sensor sends real time alarm signals to your phone when unauthorized entry is detected, ensuring your safety and providing peace of mind.2. Remote Monitoring: The door window sensor detector stays informed of your door and window status anytime, anywhere with the mobile app, offering whole day guard and detailed records.3. Smart Linkage: The wireless security door sensor enables smart scenes by linking the sensor with other devices, such as triggering lights on when door and window are opened.4. Multifunctional Usage: The window door open contact sensor detects opening and closing of doors, window, appliances, furniture cabinets, and drawers for enhanced home security and convenience.5. Easy Installation: The door sensor allows for quick and tool free setup with adhesive tape for durability and long lasting performance, making your home safer effortlessly.Specification:Item Type: Wireless WiFi Door Window SensorMaterial: ABSBattery: 2Pcs AAA Battery (Not Included)Wireless Type: Only supports 2.4 GHz WIFIOperating Temperature: -10C - 55C.Package List:1 x Detector Main Body1 x Magnet Strip2 x Double Sided Adhesive Tape1 x Instruction Manual