Equus 3130 Great Product

This thing works great and tells you instantly if your vehicle will pass an emission test, plus retrieving codes and live data is a snap and easy to read. You need to be a mechanic or mechanically inclined to use the information given, but you can definitely save on the diagnostic fee that the shops charge. This thing can be upgraded to read ABS codes for $99. If you buy the USB to serial adapter, it connects to a computer well. This was definitely the best price.