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A burglar alarm system produces a shrill sound when an intruder has entered a home or business, alerting the occupants. Burglar alarm systems and monitoring companies can install alarms in home or businesses to help deter burglars from entering. Some companies can also monitor situations from their home base, alerting authorities in the event of an intrusion or the fire department in the event of a fire. Alarm systems can include motion detectors, card or keypad access, video camera surveillance, and monitoring sensors and devices. You can find burglar alarms systems and monitoring companies in your local yellow pages or by searching online directories.
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