how does an alarm system work?

First, let's look at some of the parts that make up your system:

• Control panel - box usually found in a closet.  It is the "brain" of your system.  It monitors the system sensors and sends out the call to your alarm monitoring company if sensor is violated.
• Keypad - usually located inside your door.  It is your way of controlling your system.  Some systems now come with key fobs - a wireless keypad you can use to turn your system on or off remotely.  These must be handled with care.
• Contacts (sensors) - found on doors and windows.  They report to the control pad if a door or window is opened.
• Motion detector - senses physical movement in any given area, and when the detector senses any unusual movement within the area it is installed, it sends a signal to your alarm panel.
• Siren - can be heard inside building, outside, or both.  Some systems also come with lights that indicate an alarm.
• Others - many other types of sensors are utilized to detect a possible burglary in progress.  Sensors such as pressure mats, glass break sensors, or temperature indicators, and even small wired/wireless cameras are now available to help detect a home or business entry taking place when no one should be present.

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