Measuring instruments and apparatus; unbalance measurement apparatus; measuring sensors; acceleration sensors; sensors; rotation measurement sensors; speed sensors; position determination sensors; monitoring instruments and detectors; measuring apparatus; distance measuring apparatus; housings for measuring apparatus; balancing devices; unbalance adjustment device; data processing software; computer programs for data processing; instruments for data acquisition; equipment and accessories (electric and mechanical) for data processing; electric wires and cables; screens; display screens; spectrum analyzers, other than for medical use; calculating devices; visual display units; wireless transmitters and receivers; wireless controllers to remotely monitor and control the function and status of other electrical, electronic and mechanical devices or systems; speed control apparatus; checking [supervision] apparatus and instruments; apparatus for checking flight parameters; detectors; data protection and backup units; measures; wake measurement devices; measuring apparatus; measurement converters; wake adjustment devices; optical position sensors; optical speed sensors; optical sensors; magnetic sensors; tachometers; electrical surveillance devices; engine analyzers; rechargeable batteries; battery adapters; batteries; battery cables; battery chargers; graphic display terminals; software; assistance software; all these goods for industrial use or for use in aircraft