The disclosure relates to an apparatus for the evaporative cooling of a liquid product. The variable electronic element is mounted in a mounting side of the board body. When the host interface is connected to a host device, the controller is configured to receive a data transfer command specifying a memory address from the host interface; and if the memory address is beyond the address space of the memory, to route the data transfer command to the storage device interface for access to the add-on memory. The one-shot output of the dynamic one-shot circuit is stored in the storage circuit during an evaluation of the sensed output. Finally, there is a plurality, in this case 5, of gaming comparison cards 12 to initially all face down.