Car Boat Motorcycle Smart Gps Speedometer Odometer with Gps Antenna

Name:GPS SpeedometerSOG: Speed over the groundTRIP: Single mileage, reset after power failureODO: Accumulated mileage, save when power offCOG: heading, clockwise angle of true northNavigation pointer: 8 directions.Can freely switch kont, mph, km/h speed unitWorking environment:Working voltage: 9~32VDCWorking current: Less than 120mAWorking temperature:-20~70 CelsiusStorage temperature:-30~80 CelsiusInput parametersGPS signal:GPS antenna length is 3 metersConnection1.Black wire: negative pole of power supply (-)2.Red wire: 9~32VDCColour: blackMaterial: plasticPackage Contents:1 x GPS Speedometer1 x GPS Antenna1 x Chinese and English manualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.