9 Electronic equipment for controlling and treating water, namely, electrical integrated control systems for use in the field of waste water treatment, water treatment equipment, being fertilizer injection units, namely, devices connected to a water distribution line, which automatically injects a predetermined proportion of fertilizer into an irrigation system used by a greenhouse complex; scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking (supervision), life-saving and teaching apparatus and instruments, namely, surveying instruments, photographic cameras, cinematographic cameras, optical sensors, apparatus and instruments for weighing, water filter controllers and computer software for detecting and measuring water quality, cables for optical signal transmission, technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids, life saving rafts, educational kit comprising DVDs featuring secondary level curriculum on all scientific disciplines, along with teacher guides, sold as a unit; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electricity conduits, electricity limiters, electricity router for managing and optimizing energy loads within a building, electricity distribution units comprising power strips, surge protectors or electrical power distribution apparatus, measuring apparatus, namely, clamp meters for measuring electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, namely, blank magnetic data carriers, prerecorded magnetic data carriers featuring water treatment information, electricity management instruction; recording discs, namely, pre-recorded video discs, video recording and video tapes featuring water treatment instruction and electricity management instruction; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus