Universal OBD2&GPS Double Systems Meter Speedometer Head Up Display Muti-function Gauge Water Temp Turbo Car Accessories HUD P6 Product Feature Much More Powerful than Others: Upgraded HUD display car OBD and GPS dual systems, specifically more advanced technology, which makes our products can fit the 98% car. The OBD2 compatible the years after 2005 of a European car,after 2008 of other regions, GPS mode fits all vehicles(if your car is not OBD compatible, use GPS mode). Much Cooler than Others: A LED mood ambient lighting as the flux water to change the color with your driving speed, blue for normal, red flashing for alarm; add the time on the lower right corner; added adjustable base support, for higher, lower, front and backward to be adjusted as you wish, the tape, and a crowbar for the cable fixation. This obd hud doesnt support JOBD and OBDI.OBD model is not compatible with a hybrid electric vehicle, diesel car, pickup truck, RV, computer modified car. Much More Functions than Others: As this head-up display is a powerful function, the first point is that the OBD2 and the GPS mode can be displayed on the same interface. Data displayed in OBD mode: speed, water/oil temperature; voltage; fuel consumption; RPM; simple mileage; driving time; the number of satellites; altitude; time; air-fuel ratio; turbine pressure; acceleration test; brake test; data flow; clear the fault code, etc.So many functions can be DIY selected on 9 modes interfaces as you wish. Much More Adaptable than Others: On the OBD mode, You can customize small icons as you need such as water temperature, oil temperature, speed, voltage, turbine pressure, simple mileage, satellite number, altitude, driving time, the air-fuel ratio on the display interface. Data displayed in GPS mode: Speed; voltage; driving time; altitude; the number of satellites; driving direction; simple mileage, etc. you can switch units between miles and kilometers, switch unit PSI and Bar, 100KPA. How to Use OBD2 mode Main Function: Speed; water/oil temperature; voltage; fuel consumption; RPM; simple mileage; total mileage; driving time; driving direction; the number of satellites; altitude; system time; air-fuel ratio; turbine pressure; acceleration test; brake test; data flow; clear the fault code; switch mile and kilometer; temperature switch/degree Fahrenheit. Alarm: Overspeed; rotation Overspeed; excessive water temperature; low tension; engine failure. GPS mode Main Function: Speed; driving time; satellite time; altitude; the number of satellites; driving direction; simple mileage; voltage; acceleration test; brake test. Alarm: Overspeed; low tension Note A.OBD2 mode work for the European car after 2005, other regions after 2008. [If you aren't sure about car compatibility, please confirm with us before purchasing]. B.GPS mode work for all car C.The OBD2 and the GPS mode can be displayed on the same interface. When there is no OBD2 protocol on the car, only GPS mode is displayed. D.Speed Adjust: if Speed is different from the dashboard, can adjust -9 ~ +9; if RPM is different from the dashboard, adjust range is -25% ~ 25%. Product Specification TypeHUD Speedometer Working temperature-40 C - + 80 C Barometric pressure86-106KPa Relative humidity10%-95% Voice environment