levelling instruments; laser distance meters; multimeters; hygrometers; noise meters; detectors; metal detectors; measuring tapes; oscilloscopes; power banks; chargers for electric accumulators; electronic signal transmitters; thermo-hygrometers; meat thermometers; infrared thermometers, not for medical purposes; thermometers, not for medical purposes; combustible gas concentration detectors; gas testing instruments; AC/DC power supplies; thermal imaging cameras