Counterfeit Money Detection System, Uv Light; Watermark Detector; Color Change Ink, U.s. Currency, 0.8 X 0.8 X 6, Black/green Ultraviolet penlight reveals UV-sensitive security markings on 1996 series or newer U.S. currency of greater than $1 denomination. Simply mark a line on a bill; if the mark turns dark, the bill is suspect. UV light also works on many foreign currencies, major credit cards, passports, traveler’s checks and more.
