Alarm central units; Alarm installations and alarms; Alarm monitoring systems; Alarm sensors; Alarms for the detection of inflammable gases; Analog cameras; Baby monitors; Camera hardware systems for IP (Internet protocol) video surveillance; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Electric door bells; Home and office automation systems comprised of computer hardware, wireless and wired controllers, and downloa...