A door and window sensor is a type of security device that detects whether a door or window is open or closed. It is commonly used in home security systems to monitor entry points and help detect unauthorized access. WiFi-enabled magnetic sensor designed to provide enhanced security for your home or business. It features a compact and durable design and is easy to install. With its advanced WiFi technology, you can monitor the status of your doors and windows in real-time and receive instant alerts on your smartphone whenever it is opened or closed.