The Konnwei KW850 Full OBD2 Car Diagnostic Scanner is a professional vehicle diagnostic tool designed for both DIY users and mechanics. It reads and clears engine fault codes, turns off the Check Engine Light (MIL), displays live data streams, freeze frame data, O2 sensor information, I/M readiness, EVAP tests, battery voltage, and vehicle information including VIN. Compatible with most OBDII/EOBD/CAN petrol and diesel vehicles, it supports multiple languages for easy operation. The bright color display, fast response, free software updates via USB, and durable protective case make it an essential tool for accurate vehicle diagnostics.