The Konnwei KW850 OBD2 CAN Diagnostic Scanner is a practical tool for checking supported vehicle diagnostic information. Designed for compatible OBD2 vehicles, it can retrieve available diagnostic trouble codes and assist with identifying potential engine or emissions-related faults. The scanner is useful when a check-engine warning appears and you want to perform a preliminary diagnostic check before visiting a mechanic. Its compact handheld design makes it convenient for car owners, DIY enthusiasts, technicians, and workshops. Simply connect the scanner to the vehicle's compatible OBD2 port and follow the on-screen instructions to access available diagnostic information.