Universal USB Digital Speedometer with Compass 2 Car HUD Head Up Display in MPH KMH Overspeed Alarm Fatigue Driving for All Vehicles Mini Sized

Universal Fitment: Solid mini-sized and high-precision design for universal fitment in all vehicles without OBD or connection issues. Works well in sedans, SUVs, off-road vehicles, and more. Built-in dual +Beidou module to avoid draining the vehicle battery system. Rich Display Contents: Clear green LCD display with speed reading in MPH or KMH, time, and compass. Light sensor system for automatic brightness adjustment. Overspeed alarm (default value 120 • The compact and high-precision USB speedometer ensures a universal fit for all vehicles, including sedans, SUVs, and more. Its mini size and built-in dual +Beidou module prevent connection issues and avoid draining the vehicle battery system. • The green LCD display offers clear and eye-comforting readings, including speed in MPH or KMH, time, compass, light sensor system, overspeed alarm (default value 120), and fatigue driving alarm (default value 4 hours). • Equipped with the +BeiDou dual-mode fluent chip, this speedometer provides instant and accurate speed readings at a refreshing rate of 10HZ. Else, a speed calibration feature allows adjustments for any potential reading errors. • The speedometer offers dual installation options. At the first, connect it to the USB outlet in your car's interior or use the adhesive base for added stability. In the second, install it on the handlebar of motorcycles, bikes, UTVs and more. • Please note that the speedometer may take about 5-10 seconds to obtain the satellite signal and activate after the engine is turned on (hot start).