A & B Alarm Systems is an installation company helping with the safety needs of homeowners in Macomb. Its technicians install security technologies that include cameras, fire and water flow detectors, and intercom systems. They set up panic pendants, motion sensors, and door and window contacts. Additionally, the company provides 24/7 monitoring support using a local UL central station. It has been in business since 1973 and is a member of the Burglar and Fire Association of Michigan.