ALARM SYSTEMS

Alarm systems emit a shrill noise in response to a present and immediate danger. Additional advantages of a loud alarm sound include its ability to alert neighbors and passersby, and potentially even frighten intruders from the scene. The sight of an alarm system alone may be enough to discourage would-be thieves. Highly effective and often easy to use, this electronic security solution is a popular way to provide peace of mind for homeowners and business operators.

All alarms use sensors connected to a control unit via hardwire or wireless link. Sensors commonly detect changes in the environment such as the opening of a window or inside motion. Types of alarm systems range from small, all-in-one noisemakers to sophisticated, multi-zoned systems.

The most basic alarm systems feature elements including a control panel, keypad, siren, indoor motion detector, door and window contacts, and a central monitoring station, if the system is monitored. More sophisticated features that can be added include glass break detectors, panic buttons, pressure mats under carpeting, and alarm screens for windows.