Global Positioning Systems (GPS)

Quystetes Marine Boat Car GPS Speedometer Digital with GPS Antenna for Motor Yacht TFT Screen Waterproof Odometer White & Silver Battery voltage: 9-32V : Speed over the ground. TRIP: Single mileage, reset after power failure. ODO: Accumulated mileage, save when power off. COG: heading, clockwise angle of Can freely switch kont, mph, km/h speed unit Navigation pointer: 8... Quystetes Marine Boat Car GPS Speedometer Digital with GPS Antenna for Motor Yacht TFT Screen Waterproof Odometer White & Silver