Our Standard Bettor TITO product is great if you want to add ticket-in / ticket-out features to your slot machine.  Also offers the option to add credits by pushing the service button on your deck.  Easy to install and use.  Be sure to carefully read through "Bettor TITO Research" page to insure your machine is ready and that you have everything you need before ordering.  If you find you need something like a key chip or clear card you can also order separately at the Bettor Parts store by clicking that tab.