A retail kiosk (also referred to as a mall kiosk or retail merchandising unit (RMU)) is a store operated out of a merchant-supplied kiosk of varying size and shapes, which is typically enclosed with the operator located in the center and customers approaching the vendor across a counter.
A currency detector or currency validator is a device that determines whether notes or coins are genuine or counterfeit. These devices are used in a wide range of automated machines, such as retail kiosks, supermarket self checkout machines, arcade gaming machines, payphones, launderette washing machines, car park ticket machines, automatic fare collection machines, public transport ticket machines, and vending machines.
The process involves examining the coins and/or notes that have been inserted into the machine, and conducts various tests to determine if the currency is counterfeit. Because the parameters are different for each coin or note, these currency acceptors must be correctly programmed for each item to be accepted.