Apparatus for measuring, signalling and controlling, recording disks (excluding sound-recording discs); electrical and electronic security and safety devices including the software, connections and devices for signalling and detection (motion detectors, infrapassive and microwave, glass break detectors, shake detectors, infrared barriers, fire detectors, heat detectors and temperature differential detectors, gas detectors, emergency call points), Internet protocol cameras, Internet protocol camera monitoring systems, network cameras, Internet protocol cameras for acquisition, processing, transfer and recording of image and sound, optical instruments, printed circuits, printed circuit boards, printed electrical connections, recording and control devices for Internet protocol cameras, detectors, image sensors, video recorders, audio transfer devices, devices for controlling other devices through/via Internet protocol, security devices for the houses and households in particular, security devices against theft, apparatus and instruments of network infrastructure, energy meters, wireless computer peripheral control devices, all-in-one computer peripheral control devices, connector sockets controlled via the Internet; network recording equipment for Internet protocol cameras