Highly effective and inexpensive tool for detecting bad bills. Simply make a small mark on U.S. currency. Chemically sensitive ink works instantly. An amber mark passes the test, while a dark brown or black mark fails, meaning the bill is likely counterfeit. Works on all new design U.S. currency (bills series 1959 and later). Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Dark Brown; Currency: U.S. Features Simply make a small mark on U.S. currency. Chemically sensitive ink works instantly. Amber mark passes the test, while a dark brown or black mark means the bill is suspect. Works on all new design U.S. currency (1959 and later). Manufacturer Dri Mark Categories Dri Mark Office Supplies, Dri Mark Cash Handling, Dri Mark Counterfeit Bill Detectors MPN DRI351B1 Model# 351B1 UPC Code 070889035110 UNSPSC Code 0 Color(s) Black Counterfeit Bill Detector Type Pen Counterfeit Indication Mark Black; Dark Brown Currency U.S. Global Product Type Chem/Pen Counterfeit Bill Detectors Marking Color Amber Post-Consumer Recycled Content Percent 0% Pre-Consumer Recycled Content Percent 0% Total Recycled Content Percent 0% Assembly Required No assembly is required Contains Recycled Materials N Green Product N Unit of Measure EA Item Weight 0.037 Ships via UPS Y Carton Pack Quantity 48 EA Box Pack Quantity 12 EA This item is sold by the EA GTIN Item 070889035110 UPC Retail 070889035110 UPC Carton 50070889001356 Brand Dri Mark Manufacturer Stock No. 351B1 Country of Origin US UNSPSC Number 44111609