9 Weighing, measuring, signalling, and supervising in the nature of checking apparatus, instruments and regulators, and parts and components thereof, namely, slant sensors, motion sensors, length detectors, speed sensors, linear sensors, position sensors, temperature sensors, angle sensors, fluid sensors, gas sensors, acceleration sensors, pressure sensors, level sensors, hall sensors; air mass, speed, temperature, flow, pressure, motion, position, gas, angle, fluid, acceleration, pressure, level sensors and air mass, speed, temperature, flow, pressure, motion, position, gas, angle, fluid, acceleration, pressure, level detectors and components thereof; electric sensors and electronic motion, position, angle, speed, pressure sensors, and parts and components thereof; electric sensor switches; photoelectric sensors; apparatus, equipment and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electric cables, plug-in connectors, electric plugs, electronic housings for electric switches, electric connectors, and printed circuit boards, electric and electronic components in the nature of electric wires and printed circuit boards (PCBs)