Dyno Racing Universal GPS Speedometer - 5.5" Large LCD Heads Up Display for Cars with MPH, Overspeed & Fatigue Alarms, USB Powered Trip Meter for All Vehicles
The G3 GPS speed meter features a multi-function display area showing real-time vehicle speed, driving direction angle, compass (N/E/S/W), satellite count, driving time (MIN), trip distance (TRIP), altitude (ASL), and acceleration time per 100 km (a+).Decorative ambient lights are included on both sides of the display.
Users can enter setting mode to adjust: Speed calibration (50–150) to match the dashboard. Overspeed alarm threshold (0–250 km/h/mph). Fatigue driving reminder interval (1.0–8.0 hours). Display brightness (0=auto, 1–11 manual). Speed unit (KM/H or MPH). Time zone adjustment when no satellite signal is available.
The device operates only at 5V.Using a higher voltage may damage the unit.
Requires GPS satellite signal;the satellite icon flashes until a stable connection is established. Direction display activates only when speed exceeds 5 km/h.
Speed inaccuracies may occur due to dashboard vs. GPS differences;calibration is available in settings. In tunnels, underground parking, or under bridges, temporary signal loss may cause speed drift.