9 Electric measuring and regulating apparatus, namely, electronic devices for measuring electric current, apparatus for regulating or controlling electric current, electric loss indicators for the prevention of electrolytic corrosion; scientific apparatus and instruments, namely, electrodes for electrical monitoring and measuring of corrosion, electrical probes for measuring corrosion, cathodic protection anodes for the prevention of electrolytic corrosion, transmitters and probes for testing and measuring corrosion, corrosion monitoring and measuring instruments, namely, meters and readers and electrical cables for such instruments, electrical power modules, electrical junction boxes and terminal boxes, electrical resistance probes for monitoring corrosion, ultrasonic corrosion monitoring instruments, namely, transmitters of electronic signals and electrical transducers, electrical scanners, communication modules, and extenders for transferring corrosion and erosion data, namely, electronic land line, radio, microwave and satellite transmitters and receivers and antennas, interface modules and computers for monitoring and measuring corrosion and erosion, fluid handling device used for disposable bioprocessing applications and parts and fittings therefor; devices for protection against corrosion, in particular devices for protection of tanks against corrosion by distributing electric direct current; apparatus and instruments for conducting, distributing, transforming, accumulating, regulating or controlling the distribution of electric current; downloadable software for controlling phenomena related to erosion corrosion, namely, downloadable computer firmware for responding, analyzing and processing corrosion and erosion data