electric, electronic, signalling, and checking apparatus and instruments for recording, transmitting and/or reproducing data, sound an/or images, namely, alarms and security systems for individuals and tangible property, anti-intrusion, burglary and holdup alarms, access control and video surveillance apparatus, apparatus for recording time of presence, information and command systems for controlling security operations; all the foregoing apparatus, instruments and systems consisting principally of computer hardware and software, peripherals, sensors, transmitters, receivers, video and audio recorders, cameras, video recorders, displays and monitors, signal interfaces, and control boards; and fire and smoke detectors, fire extinguishers; antitheft alarms, personal alarms; parts for all the foregoing
Electrical and Scientific Apparatus