Intercoms; Access control and alarm monitoring systems; Alarm sensors; Anti-intrusion alarms; Apparatus for transmission of communication; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Downloadable computer software for Intercom system management, Access control system management, Home automation system management, Office automation system management, Alarm system management, Community management, Medical assist system management, Robots management, Telecommunication system management, Door bell management, Electronic locks management, Security system management; Downloadable mobile applications for Intercom, Home automation system, Office automation system, Alarm system, IP camera system, Community management, Access control system, Medical assist system, Electronic device management, Robots control, Telecommunication system, Door bell, Security system; Electric control panels; Electric door bells; Electric or electronic sensors for smart home system centralized control, environmental quality detection, detecting the state of door or window, measuring temperature and humidity, detecting whether there is water leakage in the measured range, detecting when someone walks, the power supply is automatically controlled to turn on the light, open the door, and alarm, detecting low concentrations of combustible gases in the surrounding environment, and detecting intruder; Electric switches; Electrical plugs and sockets; Electronic locks; Electronic notice boards; Home and office automation systems comprised of computer hardware, wireless and wired controllers, and downloadable software for automating appliances, lighting, HVAC, security and electrical power; Interactive touch screen terminals; Light switches; Power supplies; Security surveillance robots; Telecommunications and data networking hardware, namely, devices for transporting and aggregating voice, data, and video communications across multiple network infrastructures and communications protocols; Touch panels; Video monitors