Car head up display for OBDII speedometer with speed voltage1、Display Information: Vehicle speed, water temperature, voltage, fuel consumption, single mileage, travel time, intake pressure, oil temperature, air-fuel ratio, turbine pressure, etc. Overspeed alarm, speed alarm, water temperature alarm, voltage alarm. 2、Dual-mode Dual-chip OBD+EOBD: Independent research and development, new design, reconstruction of the bottom layer, the support of multiple protocols enhances the stability and the dual-core processor ensures smooth high-speed operation. 3、9 Major Interfaces: Switch at will, a variety of interfaces, one-kev switching, give you a new driving experience. 4、Speed Warning: Color reminder based on speed, when the speed exceeds 100, there will be a speed warning, that is, the color of the speed will change with the speed of the vehicle. 5、Three Dimensional Key Design: The appearance design adopts a low-profile semi-hidden design, which can not only integrate with the car, but also shows the technological temperament of the head up display equipment, high performance with UV resistance and no discoloration.