Elm327 Launchh Professional Bluetooth Scan Tool and Code Reader for Android and PC,Interface OBDII Car Auto Diagnostic Scanner，Not Support J1850 VPW & J1850 PWM. How to use: Plug the device in your car's OBD2 port, start the car, enable Bluetooth on your 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.
