A UV light money checker is a little handheld unit that uses ultraviolet light to detect security features on paper currency. These security features, like watermarks and safety threads, are only noticeable beneath UV light and cannot be replicated by counterfeiters. The thread is embedded in (not printed on) the https://paxtongqyho.qodsblog.com/39041381/detailed-notes-on-how-to-tell-copyright-bills-with-marker