<p>Guarantee Driving SafetyCar speedometer observing the data on the front window glass of the car, digital speedometer for car car no need to down head, insure the safety and help the driver maintain the best condition during driving.Enhanced Safety FeaturesOur car HUD display is equipped with alarm functions, including overspeed alarm, water temperature alarm, voltage alarm, fatigue driving reminder, and fault alarm. You can adjust it according to detects your needs. When the product speeding, it will beep to remind the driver.Widely CompatibleOur head up display is compatible with cars equipped with an OBD2 interface and protocol, ensuring widespread application across various vehicle . It offers versatility and convenience for car owners. With our product, you can conveniently view essential vehicle information such as speed, water temperature, voltage, and single mileage.Multiple FunctionsThis Car Head Up Display has ten functions: Driving speed, RPM, Water tank temperature, Fuel consumption, Battery voltage, Travel distance, Clock, Fuel consumption per 100 kilometer, Acceleration test, Driving time. Free switching between kilometer and mile, free switching between and .ABS Plastic MaterialsOur head up display using premium-grade ABS plastic, with heat resistance, hardness, high elasticity and toughness, improved electrical performance, wear resistance, and good waterproof performance. Good materials can effectively increase the service life of the product. We are confident in the quality of our products.</p>