... inspection: airport, prison, customs, railway, stations etc. MD-S1 (HIGH PERFORMANCE HAND HELD METAL DETECTOR)FEATUREVery High SensitivityDetection of both Magnetic and ... public, playgrounds etc. Theft-proof inspection: hardware factory, electronic factory, gold, silver or jewelry manufactory storehouse etc.Quality inspection: medicine, food ... able to provide OEM for customers hand held metal detector