MAGNETIC CONTACT DETECTORS : Each Magnetic Contact Detector comprises two parts; a Magnetic Contact Switch and a Magnet. They are designed to be fitted to either doors or windows with the Magnet fixed to the moving/opening part and the Contact Switch fixed to the door or window frame. When the protected door or window is closed, the Contact Switch is held closed by the magnetic field from the Magnet. Opening the protected door or window will remove the magnetic field and allow the contact switch to open generating an alarm signal at the Control Panel, (if the system is armed).
Decide which doors and windows are to be protected by fitting the Magnetic Contact Detectors. Normally the front and back doors will have Magnetic Contact Detectors fitted. Additional detectors may be fitted where required to other more vulnerable doors or windows, e.g. garage, patio and conservatory doors etc.