9 Electronic, pneumatic, and hydraulic weighing, measuring, signaling, controlling, apparatuses and instruments, namely, distance measuring apparatus, pressure regulators for vehicles; measuring couplings for measuring temperature, pressure, quantity and concentration of fluids in hydraulic or pneumatic systems; surveying machines and instruments; sensors for measuring vibrations, accelerations and distances; electro-optical instruments for use in inspection and measurement of industrial components; optical sensors and detectors; electric sensors; Electronic, pneumatic, and hydraulic passenger and vehicle information apparatus, namely electronic display and information panels; apparatus for monitoring and checking operational parameters and power consumption of mass transit vehicles, rail vehicles, trucks, buses, truck trailers and agricultural machines; Mechanic, pneumatic, hydraulic and/or electronic, controlling measuring, signaling, checking (supervision), control and monitoring equipment and apparatus namely, electric and electronic brake controllers, electronic controls for motors, electronic control systems for engines, electronic control systems for machines, electronic controllers for use with power converters, electronic apparatus and instruments for controlling, adjusting and testing of drives and motors; electronic signaling mechanisms, namely, rail vehicle control systems used in the railway industry for detecting and controlling trains, ground faults, broken rails, power failures, track switches and lights; electronic sensors; electric and electromechanical obstruction sensors, consisting of detectors, measuring apparatus and apparatus for the output of electrical signals; electronic voltage regulators for vehicles, current rectifiers, electricity conduits, electric circuit closers, circuit breakers, and electric loss indicator panels; electronic checking control and monitoring apparatus, namely, energy meters for tracking and monitoring energy usage; electronic checking and control apparatus for testing components of land vehicles, vehicle steering systems, power converters, traction inverters, traction and power supply apparatus, and industrial conveyor systems