Counterfeit note detector pens are a type of security tool used to detect counterfeit banknotes. These pens contain a special ink that reacts to the paper used in legitimate banknotes, but not to the paper used in counterfeit notes. When a counterfeit note is marked with the pen, the ink will not react properly, indicating that the note is likely counterfeit. Counterfeit note detector pens are an affordable and easy-to-use tool for businesses and individuals who handle cash on a regular basis, as they provide a quick and reliable way to detect counterfeit notes. While these pens are not foolproof and should not be used as the sole method of detecting counterfeit notes, they are a useful tool to have in conjunction with other security measures, such as ultraviolet detection or magnetic sensors.
