INLINE 6 for CUM-MINS Data Link Adapter Heavy Duty Scanners V8.7 Truck Profession Diagnostic Tools in CAN Flasher Remapper OBDII Truck Diagnostic Scanner. Each IN-LINE kit contains a data link adapter, basic cables, and the IN-LINE PC software driver.
This is much better than a cheap code meter. It's not a high-end fully bi-directional professional OBD2 scanner. But for the do-it-yourselfer it will give you a lot of information on your car codes and it's capable of showing live streams for a number of data points. It can also do some maintenance things. I have not yet used any of those capabilities. Also advertised that it comes with lifetime system and data updates