When you buy the obd-2 package you get the software and the interface cable. He has 100 ft cables ready to go so you can order them. I would highly recommmend setting it up on a laptop. It becomes portable and you can use it while you drive around town then analyze the data at your leisure. I beileve he was working on software for palm pilots too. You get quite a bit of info from it. I have the impression it reads anything the ecu does.