Seller notes

Manual instructions 1.Turn it on and then the gauge will start to search the signal and SOG will count automatically. If the GPS signal is poor or lost, it will count from 0-300 ,and then the SOG will show "E01",indicating that the speedometer is searching the signal. When the SOG is flickering, it means that the GPS is lost. 2. Press the button on the back side of that gauge, we can switch the unit KNOTS, MPH,KPH and save automatically. SOG: Speed Over Ground COG: Course OVer Ground: the moving...

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