The Dri-Mark® Smart Money Counterfeit Detector Pen by Dri Mark is a black marking pen with a reusable UV LED light. This product is designed to help detect counterfeit money and ensure the authenticity of currency during transactions. The pen is a practical tool for businesses in the retail and services sector, particularly at the point of sale and money handling stages. With its unique features and capabilities, the Dri-Mark® Smart Money Counterfeit Detector Pen is a reliable and efficient solution for safeguarding against counterfeit currency.