<br>Specification: <br>Accurate satellite speed measurement: Yes<br>Altitude measurement display function: Yes<br>Longitude and latitude measurement display function: Yes<br>Compass display: Yes<br>Satellite time display: Yes<br>Overspeed alarm: Yes<br>Fatigue driving alarm: 4 hours continuous driving will alarm<br>Test vehicle roll Angle: Yes<br>Vehicle tilt Angle test: Yes<br><br>Package List: <br>1* Car GPS<br>