Feature: The device suitable for OBD2 gasoline cars (1998 and newer cars in the USA), and for EOBD cars (cars from Europe, gasoline cars from 2001). BT connection, no Batteries, Cables, or Switches. - Wireless 5 ~ 10 meters. Notice: 1.NOT for iOS ! For iPhone & iPad, please choose "WiFi for iOS and Android". 2. NOT for vehicles. 3. For your vehicle to be for OBD II compliant it must have a 16-pin DLC (Data Link Connector) under the dash and the Vehicle Emission Control Information Label must state that the vehicle is for OBD II compliant. Suitable for system: mainly used with Android system phones, also supports Symbian system phones, Windows system PCs and laptops. Compatible App: Recommended Apps are Torque Pro, Torque Lite (free), for OBD Car Doctor (free), etc. on Google Play. Work with Android cellphone and tablet. Or There are various Apps and installation instructions provided on the CD. But Partial Apps need to be charged. You can run the CD to select the appropriate App. How to use: Plug the device in your car's port, start the car, enable the BT connection on your Android phone or tablet, search for "OBDII" and pair with it (pin 1234), run the downloaded App with simple settings and wait until it connects your car's ECU successfully. If you use the same for OBD on 2 or more cars, you need to disconnect BT and close App when finish testing one car, and re-match the BT connection when you insert the for OBD into another car. Displaying sensor data: 1. Engine speed 2. The calculated load value 3. Coolant temperature 4. Condition of the fuel system 5. Vehicle speed 6. Minute fuel trim 7. Long-term fuel trim 8. Boost pressure in the intake 9. The timing advance 10. Intake 11. Airflow 12. Absolute Throttle Position 13. Voltage of the oxygen sensor voltages / associated short term fuel trim 14. Fuel pressure Multi-Protocol Support: 1.ISO9141-2(5 baud init,10.4Kbaud) 2.ISO14230-4 KWP(5 baud init,10.4 Kbaud) 3.ISO14230-4 KWP(fast init,10.4 Kbaud) 4.ISO15765-4 CAN(11bit ID,500 Kbaud) 5.ISO15765-4 CAN(29bit ID,500 Kbaud) 6.ISO15765-4 CAN(11bit ID,250 Kbaud) 7.ISO15765-4 CAN(29bit ID,250 Kbaud) Note: Your vehicle may not support all above parameters. How many parameters you can get is depended on the vehicle manufacturer's implementation. includes: 1 x Diagnostic Device 1 x CD with English Softwares