Features: 1. Supports all OBD-II Protocols (ISO15765-4 (CAN), ISO14230-4 (KWP2000), ISO9141-2, J1850 VPW, J1850 PWM) 2. Works on all OBD2 Vehicles which were produced after 1966 (including VPW, PWM, ISO, KWP 2000, CAN protocols). 3. Software for ELM327 USB OBD-II auto diagnostic system is free. It allows you to use your PC and ELM327 to get various data information of the engine on your car. The software is easy to use and it supports DOS and Windows operating system. 4. Bluetooth connection, convenient for connecting to laptop. 5. Reading and analyzing the fault codes. Clearing fault codes. Displaying data of sensor. Tech Specs: Color: Black Output protocol: RS232 serial port Frequency: 38400 Operating voltage: 12V(short circuit &over current protection) Current: 45mA OBD-II protocols: ISO15765-4CAN ISO14230-4KWP2000 ISO9141-2 J1850VPW J1850PWM Output interface: USB LED indicator light: OBD transmit/receive, RS232 transmit/receive, power Package Contents: 1 x ELM 327 Bluetooth Scanner Tool