Door and window sensor

A door and window sensor is a security device designed to detect when a door or window is opened or closed. Typically used as part of a home security system, these sensors consist of two components: a magnet and a sensor. The magnet is placed on the door or window frame, and the sensor is placed on the moving part (the door or window itself). When the door or window is opened, the magnetic field is disrupted, triggering an alert, usually in the form of a sound, light, or a notification to a connected security system. These sensors help protect homes from unauthorized entry and can be integrated with other security devices such as cameras or alarms to enhance overall safety.