Here is an Album with some images of the DashDAQ system from Drew Technologies. It is an OBD2 Scanner as well as Data-Logger. Unit has 8 configurable screen to monitor and record any OBD2 signal going to a vehicles Powertrain Control Module. I also included some graphs I made off the .csv file you can output. Represents about a 9 minute drive. I logged 16 different PID's and found it would sample each of the 16 PID's about 25 times per second. This 9 minute log generated about 10,000 lines opened in Microsoft Excel. Size of the file is about 3,500 KB and is saved to an SD Card you insert on the side of the unit.