... magnetic pain;watermark;This product has three quite useful functions such as distinctive ... )Selecting switch(ultraviolet,whitelight,power on/off)2)Magnetic indicator3)Magnetic ... 55×34mm,It can change to double septuple,16mm)2.0 Technical ... degree.*Because the ultraviolet reaction in the front and back of banknote ... indicator and send out alarm. that means the banknote is true, not counterfeit) ...