Interphones; telephone sets; video telephones; heat sensors; flame sensors; smoke sensors; sound alarms; telephone transmitters; telephone receivers; fire alarms; electric alarm bells; gas leak alarms; answering machines; anti-theft alarm apparatus other than for vehicles; cctv camera; electric locks; digital door locks; electronic security systems; recording apparatus for security system; video signal transmitters and receivers; video monitoring and surveillance installations; video switching systems for cctv; cctv camera control apparatus; automatic door opening and closing apparatus; cctv; security system controllers; digital video recorder (DVR); automatic fire extinguishing equipments; video tape recorder (VCR); card reader terminals; electronic information terminals for household purposes; electric door bells; home automation system, namely a controller that provides the ability to monitor and control heating, ventilation, air conditioning, humidity, lighting, security systems, audio sets, television sets, video surveillance and appliances; electric door closer; electric door opener; multiple video displays; electronic monitoring system for security purposes; video transmitter set-top box