Security systems and security system components, namely, electronic intrusion detectors, microwave detectors, passive infrared detectors, photoelectric beam detectors, motion detectors, control panels, 2 way radios, intercoms, audio detectors, glass break detectors; electronic alarms and alarm control equipment, namely, fire and smoke sensors, fire and smoke alarms, alarm communication transmitters, control panels, power supplies, horns, and strobe lights; electronic security systems and surveillance equipment, namely, closed circuit television products and accessories, namely, cameras, monitors, switches, lenses, video cassette recorders, and related CCTV accessories, namely, video amplifiers, camera housings, video compressors, pan and pan-tilt heads, and mounting brackets; building access control equipment and systems, namely, computer software and hardware, electronic keys and cards, readers, door controllers, request-to-exit sensors for doors; security communication equipment, namely, radios, intercoms, modems, transmitters, receivers, antennas, pagers, and walkie-talkies