Door Window Sensor is a full-featured security transmitter with industry-leading wireless range and battery life. It is typically used to sense opening and closing of doors and windows, but can secure just about anything using its two external contact zones. It will alarm when the magnet is pulled away from the sensor or when an external contact is opened.

Features • Industry-leading wireless range and battery life • One door window zone and two external contact zones • Secure encrypted wireless transmissions • 5 year warranty