GReddy PRofec Electronic Boost Controller (Blue OLED)The new PRofec is compact, powerful and easy to use. The large OLED Display, with the simple two button rotary dial control, make for intuitive operation. An ultra slim controller can display in digital, bar graph, or graphical modes and can be rotated 180 degree for installation with the included adjustable mount or flush mounted. By separating the display and control unit in the drivers compartment, from the engine compartment mounted, waterproof,