alignment equipment for electronic audio apparatus; electronic instruments for testing electronic circuits; electronic sensors; electronic controllers; electronic communication instruments; electronic circuits; audio electronic instruments; integrated electronic circuits; electronic radio apparatus; electronic audio apparatus; audio electronic apparatus; electronic control circuits; electronic control apparatus; electronic communication apparatus; electronic measurement sensors; humidity sensors; heat sensors; fluid level sensors; air temperature sensors; test instruments for temperature measuring sensors; temperature sensors for scientific use; sensors for real time data output apparatus; bio-sensors; sensors used in oceanography; sensors for real time data input apparatus; calibration devices; sensors used in meteorology; wireless transmitters; wireless communication apparatus; wireless receiving apparatus; wireless transmission apparatus; wireless transmission apparatus for remote control; modems for communications networks; metal detectors; magnetic metal detector monitors; metal detectors for industrial or military purposes; detectors; radar; millimetric wave radar instruments; radar instruments; microwave detectors (radar); radar apparatus; temperature logging apparatus; electromagnetic logs; remote processing monitors; remote monitoring apparatus; data logging apparatus; logs (measuring instruments); alarm sensors; measuring sensors; level sensors; audio equipment; audio instruments; digital audio signal processors; audio apparatus; audio test instruments; electromagnetic measuring apparatus; electrical measuring apparatus; electric measuring apparatus; measuring apparatus; electronic measuring apparatus; electric measuring devices; measurement apparatus; apparatus for measuring; wind measurement apparatus