Head Up Display, Universal HUD Car Display MPH KM h Speed Limit Warning Plug Over Speed Limit Warning Plug and Play Windshield Projector

Mode: Display modes include default mode, high-speed mode, and automatic mode. Overspeed alarm includes single speed alarm and four-level alarm. It has automatic and manual brightness adjustment modes, driving without glare., Applications: HUD is Application cars with OBD2 and EUOBD ports (automotive auto diagnosis system), plug and play., Function: Car HUD's kilometers and miles can be switched freely. The 5.5-inch high-definition display screen is easy to read. Engine RPM alerts can help improve fuel efficiency by shifting gears, which is beneficial for novices., Rich display content: has speed, engine speed, water temperature, voltage, fuel consumption, engine fault code., Automatic startup/shutdown: HUD starts and shuts off as the vehicle starts and stops, effectively protecting the car battery. It keeps the manual switch mode, which makes it easier to control the HUD.