🔎 Elm327 Launchh OBD2 Bluetooth Scan Tool for Android - Professional Code Reader & Diagnostic Scanner - ELM327 V2.1 OBDII OBD2 Interface - Not Compatible with J1850 VPW and J1850 PWM Communication Protocol Review

Very Important:This product is V2.1 Elm327,it can not support J1850 VPW and J1850 PWM communication protocol.Please accurately confirm that your car is not using the J1850 VPW and J1850 PWM communication protocol protocol before you buy it. But some cars of manufacturing use the J1850 VPW and J1850 PWM, so it can not work well with them.Please Contact us if you have any problem. We provide 3 months quality , and we will give you a refund or send you a replacement if you are not satisfied with our product.The device works on OBD2 gasoline cars , and EOBD cars . Bluetooth connection, no Batteries, Cables, or Switches. - Wireless (Bluetooth) 5 ~ 10 meters. Notice: 1. NOT for iOS ! For iPhone & iPad, please choose "Wi-Fi for iOS and Android". 2. NOT for Diesel vehicles. 3. For your vehicle to be 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 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), OBD Car Doctor (free), etc. on Google Play. Work with Android cellphone and tablet. How to use: Plug the device in your car's OBD2 port, start the car, enable Bluetooth 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 OBD on 2 or more cars, you need to disconnect Bluetooth and close App when finish testing one car, and re-match the Bluetooth when you insert the OBD into another car.