Feature: 1. OBD+GPS dual system, can display at the same time. 9 kinds of display screens can be switched, up to 10 Hz refresh rate, there will be no freeze delay. 2. With alarm ambient light, the ambient light is normally blue, and flashes red in case of an alarm. The screen in the lower right corner also has a clock function. 3. The car head up display comes with a rotatable bracket, two installation methods, center console installation, or double‑sided adhesive on the windshield. 4. There are three units of turbine pressure: PSI, kPa, and bar. The turbine value can be adjusted and calibrated to increase the fuel consumption unit KM/L. 5. When the speed is switched to MPH, the water temperature will automatically switch to ℉. The single driving distance will also automatically switch to Miles, and the fuel consumption will automatically switch to MPG. Specification: Item Type: Head Up Display Material: ABS Size: Approx. 75mm/3.0in Fitment: Universal (OBD cable needs to meet the OBD2 standard vehicle) OBD2 Mode: Speed, rotation speed, water temperature, voltage, fuel consumption, clock, single driving distance, single driving time, oil temperature, turbine pressure, acceleration test, brake test, overspeed alarm, engine failure alarm, fault code elimination, water temperature alarm , rotate speed alarm, voltage alarm, kilometer-mile switch, fatigue driving reminder, automatic and manual brightness adjustment, can display more than 100 data streams. GPS Mode: Speed, altitude, number of satellites, clock, single driving distance, single driving time and compass. How to Use: 1. Simply connect the HUD to the car OBD via the OBD cable, and the HUD will be displayed when the car engine starts. 2. Displayed by plugging in the USB cable and powering on.. Package List: 1 x Head Up Display1 x OBD Cable2 x Double-Sided Tape1 x Wrench1 x Pry Bar1 x Manual Note: Due to manual measurement, please allow errors.