Specifically designed for Alert 360, our thin door/window contact is for use on doors, windows and other objects that open and close. It communicates with the control panel using the 345 MHz frequency. When the magnet (which is mounted near the sensor) moves away from or closer to the contact sensor, signals are transmitted to the control panel. The door or window contact also has an external input that accepts connections from normally-closed (NC) dry contact devices. For added protection, it is also equipped with a cover tamper.