... airport, prison, customs, railway, stations etc. MD-S1 (HIGH PERFORMANCE HAND HELD METAL DETECTOR)FEATUREVery High SensitivityDetection of both Magnetic and Non ... , silver or jewelry manufactory storehouse etc.Quality inspection: medicine, food etc.Package inspection: post office, express company, logistic company etc ... 2 chargersREMARKWe are able to provide OEM for customers hand held metal detector