This Q-Connect detection pen helps identify counterfeit notes to protect against fraud. Simply apply to a note and if the ink appears brown or black, the note is most likely counterfeit. The detector pen has a 96% rate of accuracy on bank notes of all denominations. Great for retail and cash handling businesses, this pack contains 10 detector pens.Fraud detection pen to identify counterfeit notesInk appears brown or black if note is counterfeit96% accurateGreat for retail and cash handling businessesPack of 10 pensWill NOT work on the new