Launch X431 V+5.0 PRO3 is a typical diagnostic device contributed by Launch to diagnostic industry concerning Internet application. You can use X431 V+ to diagnose full car model and full system fault through Bluetoooth. X-PROG 3 is a powerful chip reading device that can read/write keys to the vehicle. Compatible with X-431 V+, X-PROG 3 enables Anti-theft type identification, Remote control matching, Key chip reading & matching, anti-theft password reading and anti-theft component replacement.