GEYIREN M6 Car HUD Head Up Display OBD2 EUOBD Car Driving Data Speed RPM Water Temperature

M6 Car HUD Head Up Display OBD2 EUOBD Car Driving Data Speed RPM Water Temperature Feature: 1. Available for cars with OBDII and EUOBD port(Car automatic diagnosis system) plug and play. 2. 3 inch HD screen display. 3. Multi-color design makes the screen more easier to read. 4. Nano-technology eliminates double reflections to be more clear. 5. Display rich contents: speed, rpm, water temperature, voltage, low voltage alarm, high water temperature alarm, over speed alarm. Freely switch between kilometers & miles. 6. Auto power on/off: HUD start up and off with vehicle started and shutdown, a effective protection of the car battery. Also retaining the manual switch mode, more easy to control HUD. 7. Automatic and manual brightness adjustment mode, driving without glare. Specification: Environment temperature -40c- + 80c atmospheric pressure 86-106KPa Relative Humidity 10% -95% environmental noise