Main Functions&Features: Available for cars with OBD2 and EUOBD port(Car automatic diagnosis system) ,plug and play. TFT LCD multi color smart display. The first scan will show the vehicle protocol. The language can be changed. Multi function display mode or simple function display mode can be switched freely Add new functions: accelerating competitive mode ,Brake performance test, can read the entire car data stream information Supported protocol: ISO15765 CAN Bus, ISO14230 KWP2000, 9141-2 Rich Contents:vehicle speed,engine RPM,water temperature,voltage,instantaneous fuel consumption,average fuel consumption,driving distance measurement,driving time ,low voltage alarm,high water temperature alarm,over speed alarm, engine fault code alarm, eliminate the fault code,freely switch between kilometers&miles. OBD smart digital device installation : Know your vehicle brand,the OBD smart digital device work for cars with OBDII agreement or EU OBD agreement. Open the engine hood and find the sticker it , if it has words like OBDII CERTIFIED, then it can be installed. Find out the 16 pin diagnostic link of the vehicle and connect it well with OBDII connecting line. Technical Parameters: Alarm sound level: equal 30dB (A) Working voltage: 9V ~ 16Vdc (12Vdc / 400mA) Product size: 73 x 68 x 46cm/.28.74 x 26.77 x 18.11 inch Product Weight: 50 g Cable:180cm Material:ABS colour:black Package included: 1 x P10 1 x OBD cable 1 x Anti- Mat 1 x English User 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.