P15 OBD2 Car HUD Head-up Display Water Temperature / Vehicle Speed / Voltage

P15 OBD2 Car HUD Head-up Display Water Temperature / Vehicle Speed / Voltage 1. Available for cars with OBD2 and EUOBD port(Car automatic diagnosis system), plug and play. 2. TFT LCD multi color smart display 3. The first scan will show the vehicle protocol 4. Multi function display mode or simple function display mode can be switched freely 5. Add new functions: accelerating competitive mode ,Brake performance test, can read the entire car data stream information 6. Rich contents: vehicle speed, engine RPM, water temperature, voltage, instantaneous fuel consumption, average fuel consumption, single driving distance,total driving distance, driving time,turbo pressure, Air/Fuel Ratio, oil temperature, low voltage alarm,high water temperature alarm,over speed alarm, engine fault code alarm, eliminate the fault code,freely switch between kilometers&miles.