VMSpc

Now you can use your PC computer to monitor your engine - with the VMSpc. VMSpc is an intelligent data translator that links your serial port to the engine diagnostic connector on your rig.

Together with the special software, it allows you to read performance and diagnostic information right on your laptop computer.
You get complete diagnostics, trip information, and a great graphing system that lets you display up to five parameters at once. You can even store the engine data to a file and load it into a spreadsheet.