A UV light money checker is a little handheld machine that uses ultraviolet light to detect security features on paper currency. These security features, such as watermarks and security threads, are only visible beneath UV light and cannot be replicated by counterfeiters. Microprinting: Small lettering that appears like a simple https://100dollarhongkong00998.mdkblog.com/44965481/the-best-side-of-hong-kong-dollar-100