Staples® Counterfeit Detector Pens are an easy and effective tool to fight counterfeiters
Staples Counterfeit Detector Pens are a must-have for verifying bills in any cash-handling environment. The iodine-based ink reacts with fraudulent bills by marking them with a dark brown or black stain, but does not leave marks on legitimate bills. Keeping a counterfeit detector pen handy will help you catch bad bills and deter would-be criminals from passing them off on you.
Easy to use and fool-proof, requires minimal instruction
Reacts with counterfeit bills by leaving a dark mark