Pyramid 5 is the innovator in bill acceptor upgrades, and we prove
it once more by extending the life of your AL4 and GL5 acceptors.
Our solution to the high cost of replacing obsolete acceptors is to
prevent them from becoming obsolete in the first place.

To perform the upgrade, simply replace the original control board on
the side of the acceptor with the Pyramid 5 board and follow the
instructions. It’s easy and only takes 5 minutes. The original AL4
and GL5 functions are all supported, including the DIP switch settings.