1. Centronic Security Systems Inc 7234 Yinger Ave, Dearborn, MI 48126 Coordinate: 42.34423,-83.19491 Phone: (313) 581-0010
2. Guardian Alarm Inc 5953 Chase Rd, Dearborn, MI 48126 Coordinate: 42.33274,-83.18637 Phone: (313) 582-3000