AAA Alarm Engineering, Ltd., is a family-owned and family-operated company that provides security systems in Danbury and throughout the state of Connecticut. It offers home security equipment from Honeywell including CCTV cameras, card access control, and burglar, fire, and carbon monoxide alarms. It runs 24/7 monitoring services at its UL-certified central station. Its team also provides security solutions to business owners and property managers. Founded in 1984, the company is a member of the Connecticut Alarm and Systems Integrators Association.