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. Item Type: Wireless WiFi Door Window Sensor Material: ABS Battery: 2Pcs AAA Battery (Not Included) Wireless Type: Only supports 2.4 GHz WIFI Operating Temperature: -10°C - 55°C 1 x Detector Main Body 1 x Magnet Strip 2 x Double Sided Adhesive Tape 1 x Instruction Manual