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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.
ph controller, namely, analytical instrument, utilizing an electronic sensor, designed for in-line, continuous process monitoring and analysis of ph, temperature, oxygen reduction potential (orp), millivolts (mv), conductivity, dissolved oxygen and the presence of specific ions in liquids the instrument will be installed and used in conjunction with a wide variety of manufacturing, industrial and processing machinery applications to provide continuous chemical analysis of the liquids being processed