... , railway, stations etc. MDT-3003B1 (HIGH PERFORMANCE HAND HELD METAL DETECTOR)FEATUREVery High SensitivityDetection of both Magnetic and Non-Magnetic MetalsOptical ... , company, public, playgrounds etc. Theft-proof inspection: hardware factory, electronic factory, gold, silver or jewelry manufactory storehouse etc.Quality inspection ... are able to provide OEM for customers Hand hold metal detector