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. Rich Contents:vehicle speed,engine RPM,water temperature,voltage,instantaneous fuel consumption,average fuel consumption,sum 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. Colour: black Material: PC+ABS Package Contents: 1 * Host 1 * OBD line 1 * Anti-slip double-sided tape 1 * English 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.