Addimat Built-In Key Reader, USB, kit (USB), black

This is the RFID tag from the Swiss company Addimat.It was originally designed for identifying wait staff in pizzerias, restaurants, and cafés. It consists of an RFID reader with a round magnetic opening and a set of matching cylindrical keys. Each key has a rugged and waterproof body. Woven into the body of the key is an individual 48-byte serial number and a PIN code, which in some models can be reprogrammed.