Functions and Features:  1. Works on ALL OBD II Enabled vehicles, both Gasoline and Diesel cars - domestic and imported. 2. Features the unique patented One-Click Readiness Key for quick State Emissions readiness check and drive cycle verification. 3. Built-in speaker provide both visual and audible tone for readiness verification. 4. Retrieves generic (P0, P2, P3 and U0), manufacturer specific (P1, P3 and U1) codes and pending codes. 5. Easily determines the cause of the Check Engine Light (MIL). 6. Turns off Check Engine Light (MIL), clears codes and resets monitors. 7. Supports all 10 OBDII test modes on all OBDII compatible vehicles to complete the diagnosis. 8. Displays monitor and I/M readiness status (emissions). 9. Reads live PCM datastream. 10. Displays live O2 sensor test data. 11. EVAP System test data. 12. Live sensor data in text mode and graph mode (1996 and newer vehicles). 13. Reads, stores and playbacks live sensor data. 14. Troubleshooter code tips guide technicians to the root cause of a trouble code faster, saving diagnosis and repair time. 15. Battery Voltage real time monitoring, better than other expensive item from others brand. 16. Built-in DTC look-up library and display definition. 17. Retrieves vehicle information (VIN, CIN and CVN). Specification:  Product Name: OBD2 Scanner Color: Black/Red;  Product (cm): 11.6x 2.4 x 8cm/4.5x0.9x3in; Material: Plastic.