Junhong Electronic &Technology (Dong guan) Co,  Ltd. Our company is a professional metal detector manufacturer, specialized in R&D of detection technology, producing and selling metal detectors of security checking. Our metal detector series: walk through metal detector and hand held metal detector which widely being used in such places: factories, mines, banks, luxurious houses, where expensive metal articles may get lost easily, as well as airports, customhouse, jails,  exhibition halls, where dangerous metal articles are prohibited.