A device supporting cashMoney in physical form such as banknotes and coins. More handlers and retailers in authenticating banknotes. Some central banks regularly test banknoteA banknote (or ‘bill’ as it is often referred to in the US) is a type of negotiable promissory note, issued by a bank or other licensed authority, payable to the bearer on demand. More equipment with a selection of counterfeits most frequently seen in circulation and publish a list of machines and devices that have passed the test.