A home alarm system is a device placed inside a home meant to deter and detect burglaries. The system is powered, consists of a panel (the brains of the system) and usually other peripherals (motion detectors, door contacts, etc).
Home alarm systems can be professionally monitored or self-monitored (only the user is notified if the alarm is tripped). When a professionally monitored alarm system is activated, a siren will sound, then the panel will connect to the central station through an IP, cellular or telephone link.
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