Hand-held OBD2 diagnostic tool that automatically identifies vehicles, reads and classifies fault codes, providing professional repair suggestions after code reading. Comes with a free APP including all ELM 327 functions, featuring Bluetooth compatibility and HUD function. Records 100m acceleration time for online PK with other car owners and ranking upload. Built-in professional chip reduces car power consumption, allowing long-term connection. Diversified odometer display styles available, with data frames including code reader functions. Supports Motive/Chassis/Body/Electrical System diagnostics for 29 systems. Reads vehicle error codes in real-time, classified into three levels: 1. Can keep driving; 2. Fix as soon as possible; 3. Stop and find solutions. One Hundred Meter Acceleration Test supports 0-100 km (0-60 miles). Built-in intelligent power management system: connected to the vehicle, parked for 60-90 days without affecting battery normal use (ordinary ELM 327 persists for 30 days). Package Includes: 1x Automotive Diagnostic Scanner. Material: ABS. Size: Approx. 5x5cm/1.97x1.97in. Color: As shown in the picture. Note: Please allow 1-2cm errors due to manual measurement. Due to monitor differences, picture may not reflect actual color.