Postron /Casey Ultra Violet Tester Pen, Identify forged notes very quickly., Retail Box , 1 year Limit warranty

Features:
• The unique ink in the Detector Pen identifies notes quickly & easily.
• Genuine currency: light yellow or clear color mark.
• Suspect currency: Brown or Dark mark appears.
• Ideal for testify Bank Notes. These Pens is applied to a suspect Note, which use good ink. when applied to genuine note the ink the color will be dim yellow or clear, however a Fake Note will turn Black/Brown.