| There are 2 basic levels of protection provided by an electronic alarm system. Exterior protection and interior protection. Exterior protection keeps intruders where they belong, outside. Interior protection provides a backup in the unlikely event that the exterior protection should fail or if the intruder defeats the exterior protection. |
Exterior or perimeter protective devices generally consist of sensing devices attached to doors and windows leading into the home. Magnetic contacts are two-part devices used to safeguard windows and doors. One part of the contact is a switch installed in the window or door jam; the other contains a magnet and is placed in the window or door itself. Any noticeable shift in contact with the switch results in an alarm. In the event that an intruder breaks the glass instead of forcing the window or door open we can install glass break sensors. "Acoustic" glass break sensors, usually mounted on ceilings or walls, work by "listening" for the sound of breaking glass in a window. "Shock" glass break detectors are mounted on the window and "feel" the shock of breaking glass. This kind of advanced technology can provide shatter and shock protection for your windows. |
| It is important to have an interior system that will detect and intruder if he is able to evade the perimeter protection. The most common device is a motion detector , or PIR. A passive infrared motion detector (PIR) is an electronic security device that detects intruders by "sensing" motion or body heat in the area being protected. Most PIRs are designed to be used when your family is away from home or when no one will be passing through the area "covered" by the PIR. The latest models are immune from pets. So you can still protect your home and give your family pet freedom of movement throughout the home. |
