Electric control and command apparatus and instruments, namely, electrical protection switches, electrical controlling devices, contactors, electrical transformers, electrical relays, fuses, control panel, distribution control panels, namely, electric distribution consoles, power center, namely, power controllers, medium voltage control panel, overvoltage drains, namely, voltage surge protectors, current transformers, interface protections, namely, protection relays, system integrator, namely, integrated circuits; apparatus and instruments for recording, transmission or reproduction of sound or images; electric and electronic burglar alarms and alarm installations; telephone, door phone and video door phone installations, namely, outdoor boxes, electrical feeders, outdoor and indoor cameras, monitors, call centers, namely, telephone call routers, telephone units, namely, telephones, modems, radio transmitters, battery chargers, multipair cables, system integrator, namely, integrated circuits; photovoltaic installations, namely, stainless steel structures, namely, photovoltaic cells, aluminum structures, namely, photovoltaic cells, photovoltaic modules and panels, electrical cables, electric control panel, monophase inverters, three-phase inverters, battery pack systems, namely, solar recharging battery pack for digital cameras, system integrator, namely, integrated circuits, apparatus and instruments, namely, datalogger, namely, electronic datalogger which measures, stores and displays temperature and relative humidity data, and analyzes the impact on material decay rates, energy analyzers, energy counters, I/O analog modules, namely, electronic A/D converters and electronic D/A converters to directly interface analog signals, I/O digital modules, namely, digital INPUT/OUTPUT modules to interface with on/off sensors, pushbuttons and limit switches; on/off electric actuators for motor starters, pilot lights on/off electric actuators, and electric annunciators, sensors, namely, pressure sensors, multifunction indicators, namely, pressure and temperature indicators, network analyzers, power converters, anemometers, thermometers, electrical transducers, solar irradiation sensors; photovoltaic cells; fibre optic cable installations, namely, monomode fiber optic cable, multimode fiber optic cable, pipes, cabletrays, optical connections, namely, fiber optic connectors, data racks, namely, network cabling framework, namely, electric network cable and a mounting rack for computer and telecommunications hardware, communication hubs, telecommunications switches, routers for telecommunications; computer hardware, data transmission, namely, datalogger, namely, electronic data recorders over time or in relation to location either with a built in instrument or sensor or via external instruments and sensorschannel generators, namely, multiplexer and demultiplexer, acquisition systems, namely, wireless data transponder, serial communication data transponder, USB data transponder, circuit boards, namely, data acquisition plug-in boards, circuit boards, namely, single ended data acquisition boards, circuit boards, namely, differential data acquisition boards, circuit boards, namely, single ended and differential data acquisition boards, communication and interface ports, namely, data access port for use with electrical control panels for connecting multiple data and electrical devices, communication converters, measurement converters, Ethernet/internet modules, namely, integrated circuit modules, Internet servers, data storage systems, namely, computer hardware for high-speed processing and storage of data using multiple CPU's, cables and fibers for transmission of sound and images, multimedia installations, namely, computer workstations comprising computer hardware, liquid crystal displays, monitors, LCD panels