Postron /Casey Ultra Violet Tester Pen Identify forged notes very quickly

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.   Specifications: Product Code: UNPEN Description: Postron /Casey Ultra Violet Tester Pen Color: Blue + Yellow Size: approx. 133 x 15 x 12mm/5.23 x 0.59 x 0.47'' Net weight: approx. 50g Gross weight: approx. 105g