The door contact has two components, a reed switch which is controlled by a magnet. This type of device can also be fitted to protect windows and gives a reliable way of giving perimeter protection to your home, giving you the freedom to move around the house whilst your alarm is set.
Door and Window Contact Sensor
By admin|2011-03-25T18:28:31+00:00March 22nd, 2011|Alarm-Components|Comments Off on Door and Window Contact Sensor