Closed circuit TV systems for security and surveillance, namely, monitors; Electronic monitoring apparatus, namely, alarm monitoring systems; Audio- and video- receivers; Video recorders; Camcorders; Baby monitors; Video baby monitors; Television cameras; Burglar, smoke, and gas alarms; Warning bells; Theft prevention installations, namely, theft alarms; Anti-theft warning apparatus, namely, anti-intrusion alarms; Fire alarms; Electric door bells; Smoke detectors