28 3100 - Fire Detection and Alarm

Alison Control - Special hazard fire detection actuation systems for areas where fires would prove disastrous.
Bosch Security Systems
Det-Tronics
Digital Monitoring Products
Fike Corporation - Products that protect critical assets from dangers such as fire, explosion and over-pressurization.
Firecom
First Alert
Gentex Corporation
Honeywell - Security and Fire
Johnson Controls
Kidde-Fenwal
H.R. Kirkland Company
Mircom Technologies
National Time & Signal has been manufacturing quality fire alarm systems in the USA since 1916.
Potter Electric Signal Company
Safe Fire Detection
Safety Technology International, Inc. -Tough wire guards protect against vandalism and accidental damage.
Siemens Building Technologies
Signal Communications Corporation
Signify
Xtralis - VESDA, the global leader and manufacturer of very early air sampling smoke detection system.