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Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
hand-held electronic devices for corrosion evaluation of reinforced concrete structures, namely, wireless rebar corrosion monitor consisting of corrosion measurement electrodes, humidity and temperature sensors and data recording unit in the form of a tablet computer with pre-installed software application for recording and storing test results, and laboratory electrical resistivity and permeability meter consisting of concrete sample holder and electrodes and data recording unit; hand-held electronic devices for measuring corrosion rate of concrete reinforcement bar, electrical resistivity of concrete, corrosion potential of concrete reinforcement bar, and ambient temperature and relative humidity, namely, corrosion measurement electrodes, humidity and temperature sensors and data recording unit in the form of a tablet computer with pre-installed software application for recording and storing test results, and laboratory electrical resistivity and permeability meter consisting of concrete sample holder and electrodes and data recording unit