ARTILAURA Windshield GPS Speedometer Head Up Display HUD 3.5 Inches Digital GPS Speedometer Smart Gauge Overspeed,Compass, Mileage for Most Car Vehicles

Accurate Real-Time Data Display: This HUD GPS Speedometer uses the windshield as a projection screen to project data directly onto it, letting you stay informed at a glance with comprehensive info: digital compass (N/S/E/W), real-time vehicle speed (KM/H or MPH switchable), driving time (MIN), and trip mileage (TRIP). The multi-function display area ensures all critical data is visible without taking your eyes off the road, enhancing driving safety

Intelligent Safety Alerts: Equipped with 2 key safety features: adjustable overspeed alarm (0-250 KM/H, default 150 KM/H) to warn you of exceeding speed limits, and fatigue driving reminder (1.0-8.0 hours, default 8.0 hours) to prevent drowsy driving. Easily toggle the alarm buzzer on/off with a 2-second long press for personalized use

Easy Setup & Customization: Long-press the M key for 2 seconds to enter setup mode, then switch between 7 settings (speed fine-tuning, alarm, brightness, etc.) via short presses. Adjust brightness ( 0 is automatic photosensitive mode,1-11 is manual adjustment), and reset factory data—all in minutes

Reliable GPS Satellite Connection: After power-on, the compass icon flashes during satellite search; once steady, it's ready for use. For optimal signal, use in open areas (avoid underground parking, tunnels, or bridges with obstacles). When speed exceeds 5 KM/H, the compass accurately shows driving direction, eliminating wrong direction displays

Safe 5V Power Supply & Durable Design: Operates on 5V power only—never use a higher voltage to avoid damage. Powered via USB (check cable for damage if no display)

Troubleshoot in seconds: No speed display? Move to an open road for satellite connection. Inaccurate speed? Verify KM/H/MPH unit (setting 5) or fine-tune parameters (e.g., dashboard 100 KM/H vs. HUD 105 KM/H = set to 102). Time out of sync? Adjust time zone without satellites, or sync with local time once connected