Premier fog-free with a crisp, modern look: black dial with white and blue graphics that back-light red at night. When illuminated, advanced light piping distributes light evenly across dial and into the staff of the pointer for excellent night readability, no "halo" around dial. 2" trim gauge (Outboard, I/O). Fits Evinrude/Johnson Outboard. Dial range: Up-down. Sender code: by engine manufacturer. Cutout dimensions: 2-1/8".