Features:1: Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database). 2: Clear trouble codes and turn off the ("Check Engine" light) 3: Display current sensor data, including: 4: Engine RPM 5: Calculated Load Value 6: Coolant Temperature 7: Fuel System Status 8: Vehicle Speed 9: Short Term Fuel Trim 10: Long Term Fuel Trim 11: Intake Manifold Pressure 12: Timing Advance 13: Intake Air Temperature 14: Air Flow Rate 15: Absolute Throttle Position 16: Oxygen sensor voltages / associated short term fuel trims 17: Fuel System status 18: Fuel Pressure 19: Many others Specification: Bluetooth OBDII of V018: Product parameters: Communication : Bluetooth 4.0/5.0/BLE Main control chip: PIC18F25K80 Working voltage: 12V Working current: 26mA Working temperature: -40 Celsius~80 Celsius Working humidity: less than 60% Colour:Blue Material:ABS Package Contents: 1x Bluetooth OBDII of V018 1x Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.