A8 Car HUD Head Up Display OBD2 Digital Speedometer RPM Fuel Consumption Water Temperature Voltage Overspeed Alarm Car Projector

A8 OBD2 Car HUD Head Up Display, Multi Display Modes, Real-time Speed RPM Fuel Consumption Water Temp Voltage Monitor, Overspeed /High Temp /Low Voltage Safety Alarm.OBD2 Plug & Play Connection：Directly connect to your car OBD2 port, read vehicle data in real time. Simple installation, no wire cutting or car modification.⚠️Note: Not suitable for pickup trucks, RVs, diesel vehicles. Cars manufactured before 2008 are incompatible.Rich Driving Data Display：Simultaneously show Speed, RPM, fuel consumption, water temperature, battery voltage, driving distance. 4 optional display modes for different driving scenarios.Multiple Safety Alerts：Built-in overspeed reminder, high water temperature alarm, low voltage warning, shift reminder and fatigue driving reminder to protect your driving safety.Clear Windshield Projection：Projects crisp colorful data onto your front windshield. No need to look down at dashboard while driving, greatly reduce distraction.Unit Switch & Auto Brightness：Support KM/H and MPH unit switching. Adjustable screen brightness for day & night driving, readable under strong sunlight and dark night.