Portable Security Alarm. No Installation Necessary. Unit calls up to eight cell phone numbers via internal cell phone. No hard line necessary. Twelve Hour Battery. Comes with one wireless motion detector and two wireless magnetic detectors. Remote arm/disarm (key chain). Sends alarm when AC is lost or battery is low. Can be set for silent alarm internal siren or add a wireless siren. Good for empty or occupied homes. Contractors can move unit from place to place, protecting tools and.. materals. Just plug it in and your protected, anywhere in the country . Basic Unit $900. Will demonstrate for anyone in the Detroit Metro Area. 313-530-3587.