On-board diagnostic (OBD) scanners plug directly into your car's access port, and give you a glimpse at what's going on in your car's computer. A good scanner can identify if your problem is trivial matter that takes a few minutes to fix, or if it's more serious. Saving you unnecessary trips to a mechanic, and stopping unscrupulous types from taking you for a ride. Keep your car running smoothly with this NEXPOW V519 Universal OBD2 Scanner Code Reader Car Diagnostic Tool. This scanner is compatible with most 1996 and newer OBD2-compliant vehicles and can read and clear diagnostic trouble codes (DTCs) and turn off check engine light (CEL) with ease. With a 2.8 inches color display that shows real-time vehicle sensor data and compact & portable design makes it easy to use, this handheld scanner is perfect for car owners, DIYers, and mechanics. It supports ten languages (English, German, French, Spanish, Italian, Russian, Dutch, Chinese, Japanese, Portuguese) and requires no battery or charger, as it is powered directly by the OBD-II cable. (Note: The unit is not compatible with new energy vehicles, hybrid vehicles and vehicle types that do not conform to OBD2 agreement.)