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Security and access control equipment sold individually as components or together as a system comprising one or more sensors, detectors, monitors, alarms, control panels, control panel housing, keypads, transceivers, transmitters, signal receivers, alarm switches, switch housing, wireless communicators, electrical power supply units, transformers, and diagnostic, testing, and service and replacement parts for the foregoing equipment; fire protection and safety equipment sold individually as components or together as a system comprising one or more units for the sensing, detecting, monitoring, annunciation and reporting of smoke, hazardous gas, temperature, environmental conditions, frozen pipes, and water leakage, namely proximity and optical sensors, detectors and monitors, alarms, alarm switches, switch housings, control panels, keypads, transceivers, transmitters, signal receivers, wireless emergency transmitters and transceivers, electrical power supplies, transformers, and diagnostic, testing, and service and replacement parts for the foregoing equipment; computer user interface software and control software for managing security, fire, and access systems