SYSTEM SENSOR

Fire alarm and emergency evacuation devices, namely, smoke detectors, heat detectors, projected beam smoke detectors, remote annunciators, relay bases, sounder bases, isolator bases, gas detectors, relays, detector sensitivity test tools, monitor and control modules, horns, strobes, chimes, speakers, directional sounders, waterflow detectors, electric supervisory switches, electric pressure switches, alarm bells, duct smoke detectors and remote test switches