VGEBY Headup Display Car, Car HUD Alarm System Universal 3 Inch Heads Up with LED Digital OBDII Interface Speed ​​Warning Windshield Projector for Truck

Automatic adaptation car models, and can apply for cars in line with OBD II or EUOBD (onboard automatic diagnostic system). Plug and Play. 3" screen and high-definition display; The use of nano-technology eliminates unwanted reflections and can make display information more sharper. Multi-color design makes the screen more abundant and easier to read. Automatic and manual brightness adjustment mode, driving without glare; Auto power on and off with vehicle started and shutdown, effective of the car battery; while retaining the manual switch mode, and more beneficial to control HUD. Display rich content: speed, engine speed, water temperature, battery voltage, low voltage alarm, high temperature alarm, speed alarm, fuel consumption, fault code elimination, switching between kilometer and mile. The engine RPM alarm can improve the efficiency of gasoline by changing the speed of the engine rotation, this is especially good for novices.