Security inspection: airport, prison, customs, railway, stations etc. MDT-3003B1 (HIGH PERFORMANCE HAND HELD METAL DETECTOR)FEATUREVery High SensitivityDetection of both Magnetic and Non-Magnetic MetalsOptical, Acoustical ... factory, electronic factory, gold, silver or jewelry manufactory storehouse etc.Quality inspection: medicine, food etc.Package inspection: post office, express company ...