This ELM327 V2.1 Bluetooth 4.2 diagnostic scanner is a high-quality tool for identifying and troubleshooting vehicle engine faults. Designed for seamless connectivity with both iOS and Android devices, it provides real-time data and error code reading for a wide range of vehicles. Key Features: Wide Compatibility: Supports gasoline and 12V diesel vehicles from 1996 onwards (USA), 2001 onwards (EU), and 2004 onwards (Asia). Comprehensive Diagnostics: Read and clear diagnostic trouble codes (DTCs) and turn off the Check Engine Light (MIL). Real-Time Data: Monitor engine RPM, calculated load value, coolant temperature, fuel system status, vehicle speed, intake manifold pressure, and more. Advanced Connectivity: Features Bluetooth 4.2 for a stable connection to your smartphone or tablet. Supported Protocols: SAE J1850 PWM / VPW ISO9141-2 / ISO14230-4 KWP ISO15765-4 CAN (11bit/29bit ID, 250/500 Kbaud) How to Use: Plug the adapter into your car's OBDII port (usually located under the dashboard). Start the vehicle and enable Bluetooth on your mobile device. Pair with "OBDII" (Pairing code: 1234 or 0000). Open your preferred diagnostic app (e.g., 'Torque' for Android) and connect to the device. Package Includes: 1 x ELM327 Bluetooth 4.2 Car Diagnostic Scanner.