If your car's Check Engine Light is on, you need this device. V-Checker is a handy device for reading and erasing trouble code in your vehicles. It can also display live data for your vehicle. It is small in size, robust in design, competitive in price and easy to use. This is a stand alone unit, it does not need a laptop computer to operate. By simply connecting V-Checker with the diagnostic socket, the user will be able to read the trouble code. The trouble code description will be displayed directly on the screen, no need for search it in the user's manual. Multi protocol support. Welcome to to get more details of Auto ECU Decoding & Resetting Tools, vehicle Diagnostic Tools which made in China with factory price.