OBD and GPS dual system: Upgraded HUD display with OBD and GPS dual system, added 10 OBD2 protocols to improve compatibility, and can adapt to 98% of cars. OBD2 is compatible with European cars after 2005, and in other regions after 2008. GPS mode is applicable to all vehicles. LED ambient lighting: LED lighting can change color with the speed of the car, blue means normal, red flashing means alarm. Time can be added in the lower right corner of the meter. An adjustable base support has been added, which can be adjusted as needed. Multiple displays: Flat OBD2 and GPS modes can be displayed on the same interface. OBD mode displays speed, water temperature, oil temperature, voltage, fuel consumption, mileage, driving time, satellite number, altitude, turbine pressure, acceleration test, and brake test. More adaptable: In OBD mode, you can customize the small icons according to your needs. GPS mode displays speed, voltage, driving time, altitude, number of satellites, driving direction, and simple mileage. You can switch the unit between miles and kilometers, and switch the turbine unit to PSI, Bar, or 100KPA. Safer driving: This head up gauge has an OBD2 and GPS dual system. The driver no longer needs to look down at the dashboard to check fuel consumption, speed, possible malfunctions, turbine pressure, driving time, or voltage. It is safer when driving.