Door and Window alarm contacts are essential to any home or business security system. The technology is very simple. Each contact consists of a sensor, which is attached to the frame of the door or window, and a magnet, which is placed on the door or window itself. The magnet acting on the sensor creates a circuit, and when the sensor is separated from the magnet, a signal is sent to the alarm control panel, signifying an entry breach.
There are two primary types of door and window contacts: Recessed alarm contacts and surface mount alarm contacts. With recessed alarm contacts, the magnet and sensor are installed inside the frame and the door or window.
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