The MS3-Pro combines all of the standard and optional features of MS3, including sequential ignition and fuel injection, knock sensor support, SD data card logging, USB and RS-232 interfaces, and more. It features automotive-grade, waterproof connectors and a high temperature nylon case. For harsher environments, the case can be completely submerged by sealing its seam with silicone.

Take a look at its impressive list of standard features:

• 10 High-impedance fuel injector outputs
• 8 Logic level ignition outputs
• 3 5A General purpose outputs
• 3 3A General purpose outputs
• 1 Stepper motor IAC driver
• 3 Spare analog inputs
• 4 Spare digital (on/off) inputs
• 3 Spare digital (frequency) inputs
• 2 Knock sensor inputs
• Universal (Hall, optical, VR) crank and cam sensor inputs
• Tachometer output
• Fuel pump output
• USB, RS-232, and CAN interfaces
• Internal 8GB SD data card
• Internal real-time clock

Each MS3-Pro includes 8' wiring harnesses and tuning cables.

All MegaSquirt ECU's are NC/NR.