Dri-Mark� U.S. Counterfeit Money Detector , Black 351B1

Prevent fraud in your workplace with a counterfeit detector pen, capable of determining if a U.S. bill is genuine or suspect quickly, even in busy environments. The Dri-Mark counterfeit pen marks a small line on a bill and informs the teller if the bill is counterfeit based on the color of the mark against the U.S. bill. Great for busy retail environments. Money detector pen can be used with other counterfeit detection methods. Screen U.S. currency simply by marking a small line on it. If the mark is amber, the bill is genuine. If the mark is black or dark brown, the bill is suspect.