The first is the OPTO reader, a small device equipped with MDB protocol, which integrates an optical sensor and a Bluetooth module enabling connection with the user’s smartphone. The OPTO reader does not require any modem or SIM card, which reduces costs and simplifies installation/operation. In its current version (OPTO-PIT), the reader also integrates a traditional “key” system, whose functioning is fully separated from the digital solution.
When connected to a CAIMAN unit, the OPTO reader combines all the functions of the CAIMAN line with the advantages and the potentials of the digital platform.

The OPTO App – available for free for Android and iOS smartphones – enables payment with any vending machine equipped withan OPTO reader, independently from the vending operator or national borders.
The smartphone connects to the reader through a sequence of colors from the phone screen.
Top-ups can be done with cash or credit cards.

The OPTO Portal (server or backend), containing all data and critical info, is housed in secure and certified data centers. The server controls cash flows with a certified external bank, an E-money issuer authorized to operate throughout the European Union. The vending operator can connect to the OPTO Portal to have complete view and control over the situation of his/her Vending Machines and order transfer of funds from his E-Money Account to his ordinary bank account.