Counterfeit notes can cost businesses and individuals thousands in losses. Arm yourself with our Bank Note Tester Pens—a simple, reliable tool that instantly helps you spot fake cash. Just mark a small line on any bill; if the mark stays amber or yellow, it's real, but if it turns dark, the note is suspect. No training or special equipment required. Ideal for shops, cafes, markets and personal use, these pens work on most paper currencies and last for hundreds of checks. Don't leave your finances to chance: add a pack of Bank Note Tester Pens to your checkout and enjoy peace of mind with every transaction.