Security Pen with UV Light

The Security Pen with UV Light features a long life UV pen for invisibly marking items and a built-in LED UV reader for viewing. The Security Pen is ideal for making a mark that is invisible to the naked eye, until the built-in UV light (or another UV light) is used over the area. The UV Light can also be used to check for watermarks on bank notes and other documents, to invisibly mark documents or bank notes or to write secret messages. Batteries included. Note: This product has been tested for reliability on the bank notes listed on the packaging and we are confident that it is effective. We cannot, however, be held liable for any loss or damage which result from using the product.