AZIJYV GPS Speedometer Digital Speedometer for Car, Heads up Display for Cars with Speed,Voltage,Speed Alarm (Single Segment/Four Segment), MPH Speedometer Suitable for All Vehicle

Overspeed alarm and fatigue driving reminder: Users can set their own overspeed alarm values, with single segment alarm and four segment alarm options to choose from, and prompt in a timely manner when overspeed occurs. The car speedometer also has intelligent fatigue driving monitoring function, which automatically sends reminders when driving continuously for more than 8 hours, assisting drivers in arranging rest reasonably and effectively improving the safety of long-distance driving.
Automatic sensitivity adjustment, clear and comfortable display day and night: The digital speedometer for car is equipped with an ambient light sensor, which can intelligently sense changes in surrounding light brightness and automatically adjust the screen brightness. High brightness and clear visibility during the day, soft and non glaring at night, providing a comfortable and intuitive visual experience in any lighting environment, reducing driver distraction.
Plug and play, non-destructive installation, compatible
with all vehicle models: simply connect the car's USB interface or cigarette lighter converter to power it up, without the need for rewiring or modification., The mph speedometer for car automatically starts and shuts down when the vehicle is turned off, without damaging the battery. Suitable for all USB interface models such as fuel vehicles, electric vehicles, hybrid vehicles, trucks, buses, etc.
High definition LED display,
supporting intelligent speed calibration: The hud speedometer adopts a high-definition LED display, with sharp and clear numbers and icons displayed. The device provides speed calibration function, and users can adjust the displayed speed according to their actual needs to keep it consistent with the car dashboard data, ensuring accurate and reliable driving information.