DescriptionOBD2 +GPS Dual Model and SystemThis heads up display reads the driving data of the vehicle through the OBD2 platform of the ECU computer, such as speed, speed, fuel consumption, water temperature, voltage, etc. It instantly reads the driving information under the condition that the large field of view does not shift during the driving of the car, avoiding the driver from looking down at the instrument during the driving process to affect safety. Safety Driving FunctionThis car HUD device meter has alarm functions such as low voltage alarm, high water temperature alarm, over speed alarm, fatigue driving alarm, RPM alarm, etc. These alarm functions can help you avoid accidents and keep your car in good condition to ensure your driving safety. Environmental change lightWhen the head-up display is driving normally, the ambient light is blue (automatically adjust the brightness according to the environment), when driving abnormally such as overspeed, the ambient light will change to red for alarm and show please don"'"t overspeed, making your journey safer. Multiple installation and easy to installThis digital speedometer comes with OBD2 cable, just plug it into the OBD port to use and read your car"'"s data. It will not change your car"'"s wiring or damage your car"'"s surface. There are two ways to mount it: with a bracket on the center console of your car, or with a swivel bracket on the front windshield or A-pillar, depending on which position you prefer. Upgraded HD ScreenThis digital speedometer is equipped with a high definition TFT LCD screen that displays information in a more colorful, clear and slim design with ambient lights around the edges for a high-tech feel. It also has a multi-page switching function, which allows you to monitor speed more comfortably and brings more fun to your driving experience.