On Monday I received this in the mail. It's an Actron Pocket Scan Plus Scanner. It's used for retrieving diagnostic trouble codes from vehicles, when the Check Engine Light is on. A lot of scanners just read codes, but do not tell you what the code means. This Actron scanner does both, in a very small unit. It reads OBD II and CAN codes too. This will be a useful addition to my tool collection. Code readers are useful for any serious or DIY mechanic. The best part? It was sent to me Free of Charge by Actron so I can test out it and write about it. I can't wait to find some cars to hook it up too. A thorough review to be posted soon!