Measuring instruments and devices included in this class, especially for measuring pressure, absolute pressure, differential pressure, temperature, quantity, particularly flow rate, humidity, force, acceleration, distance angle, velocity, density or level and including; pressure gauges, manovacuometers, manometric balances, barometers, altimeters, thermometers, thermo-hydrometers, hydro-meters, pressure sensors, flow meters, pressure transmitters; measuring transducers, especially pressure transducers, differential pressure transducers, level transducers; remote indicators; controlling and regulating devices, especially pressure switches, limit switches, level switches, flow controllers, pneumatic relays, electric contactors, position controllers; electro-technical apparatuses, especially power sources, amplifiers, circuits and recorders; calibrating instruments; gearings, forming part of measuring instrument movements; parts of the goods listed above, excluding magnetos, flywheel magnetos, magneto-alternators, alternators, magneto-generators, generators, battery ignition units, distributors, coils, condensers, timers, breaker point assemblies, relays, solenoids, rectifiers, and repair and replacement parts and components of any of the foregoing