Life Safety Consultants carries one of the largest selections of Simplex fire alarm replacement parts available online. Simplex, now part of Johnson Controls, has been a cornerstone of commercial fire alarm technology for decades — their equipment is found in schools, hospitals, military installations, and large commercial facilities across the United States.

Our Simplex inventory includes replacement parts for addressable control panels, pull stations, photoelectric and heat detectors, notification appliances (horns and strobes), and system modules. Whether you’re servicing a legacy Simplex 4100 system or a current-generation 4100ES panel, we stock the components you need to keep your system fully operational — including discontinued parts that other suppliers no longer carry.