MGI

ELECTRONIC SECURITY PREMISE PROTECTION SYSTEMS, COMPRISING PERIMETER INTRUSION DETECTION CIRCUITS, HOLDUP ALARM CIRCUITS, AND/OR AUDIO DETECTION AND ACTUATED CIRCUITS, FOR INTERCONNECTION BETWEEN A PROTECTED PREMISE AND A CENTRAL STATION

SIMULATOR FOR DEMONSTRATING THE OPERATION OF ELECTRONIC SECURITY PREMISE PROTECTION SYSTEMS, AND TEST UNIT FOR TESTING THE OPERATION OF ELECTRONIC SECURITY PREMISE PROTECTION SYSTEMS