compare security systems The touch pad is a wall mounted unit that owners use to activate the system so that it is prepared to alarm when triggered. If a door or window contact is broken, or an interior motion sensor is breached, an audible alarm will go off in the home. ADT systems can be customized to include a two way intercom. If an interior, or exterior, siren goes off, the voice of a live ADT security representative will come over the intercom to ask the homeowners about their safety and confirm that help is on the way from the police. ADT smoke sensors sound off if a fire is detected. ADT representatives are alerted and the fire department will be called.

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alarms for seniors

And globally Lyon, 2005.