Usage Tips:[WIDE COMPATIBILITY] Professional V302 OBD2 Scanner Supports 8 languages (English, German, French, Spanish, etc.). Please check compatibility with your vehicle before purchasing. !!! This car diagnostic tool is powered directly by your vehicle's OBDII connector, no batteries or chargers required. [MULTIPLE FUNCTIONS] This code reader for cars and trucks acts like a mini , enabling you to quickly read and clear engine error codes, analyze live data streams (with graphical displays), view freeze frame data, check readiness status, monitor inspection readiness, and gather vehicle information with detailed indicator displays. It empowers you to independently diagnose trouble codes with instant code definitions, assess your vehicle's health, and prepare you for a visit to auto repair shop with clear maintenance . [OBDII COMPREHENSIVE SYSTEM TEST] This obd2 scanner diagnostic tool delivers advanced engine diagnostics, including testing for O2 sensors and EVAP systems. Conduct precise leak tests on your vehicle's EVAP system to fuel tank integrity and compliance with emission standards. The O2 sensor testing feature fine-tunes air/fuel mixtures, improving fuel efficiency and reducing emissions- at pump while minimizing your car's environmental impact. Please note: There may be slight color difference or discrepancy in actual product, which does not affect use, please don't mind, thank you! Color:Red & Black Material:ABS Package Contents: 1 * Scanner 1 * English manual Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.