A UV light money checker is a little handheld device that works by using ultraviolet light to detect safety features on paper forex. These security measures, such as watermarks and protection threads, are only seen underneath UV light and cannot be replicated by counterfeiters. Some units appear with created-in pens https://howtotellcounterfeitbills11099.blogolenta.com/35941521/100-hong-kong-dollar-secrets