The UI-320 Programmer has a 2.75″ wide x 2.0″ high TFT screen or 3.2″ diagonal viewing area. It is a wide screen format with Larger numbers for the Speedometer, Larger characters and Larger buttons. This is an upgrade from our standard 2″ display the UI-240. It can be purchased as an upgrade to a previous TCM purchase or with your TCM controller order for an additional cost.