Top Line Tools via Newegg offers the Autel MaxiScan CAN OBD-II Scan Tool, model no. MS300, for $15.99 with free shipping. That's the lowest total price we could find by $4, although we saw it for a buck less in March. This device retrieves generic and manufacturer-specific Diagnostic Trouble Codes (DTC) and retrieves VIN (Vehicle Identification Number) on 2002 and newer vehicles that support Mode 9.