... distinctive magneti 1.0 External Introduction1)Selecting switch(ultraviolet,whitelight,power on/off)2)Magnetic indicator3) ... 1 Ultraviolet detection*Connect the power select to ultraviolet switch. put the banknote on the table.Under ultraviolet lamp.Something ... (fluorescentpowder)or fiber.According to this principia,the ultraviolet lamp can detect out the counterfeit banknote,stocknote, creditcard ...