This OBD2 car diagnostic tool is a Bluetooth scanner compatible with Android and Windows devices. It supports various OBD-II protocols, including SAE J1850 PWM, SAE J1850 VPW, ISO 9141-2, ISO 14230-4 KWP, and ISO 15765-4 CAN. The tool allows users to read diagnostic trouble codes, clear trouble codes, and display current sensor data, such as engine RPM, coolant temperature, and fuel system status. It is a useful tool for car owners and mechanics to diagnose and repair car problems.