85mm GPS Speedometer Universal Odometer Gauge with GPS Antenna 8 Colors Backlight MPH KMH for Car Truck Marine

pecification： 8 Colors Backlight:Red,Green,Blue,White,Yellow,Kelly,Orange,Purple , you can press the Set button change the backlightItem Color: BlackOperating Voltage：9~32V DC-Fixing Dimension : 85 mmIndicating Range: 0~999 (MPH, Knots, Km/h)GPS Speedometer Gauge fit for Universal Car ,BoatFunctions:SOG---current speedCOG---moving directionTRIP---mileage for one trip(will become zero after turning off the power)ODO---cumulative total mileage(cannot be reset)-Operation mode: LCD display, stepper motorOperation:1) Quick press the “MODE” button to switch the unit of “SOG” (Opitons:Km/h, MPH,Knots)2) Hold the MODE button for three seconds for Switch TRIP 01 or TRIP 02 to display.TRIP 01(Default): total mileage for one working cycle, data will not be recorded when power off.TRIP 02: total mileage for one working cycle, data will be recorded when power off,but users could hold the set button for 3~5 seconds to clear.Remarks: The unit of trip ,total mileage and speed are the same.Package Includes:1x GPS speedometer1x Installation Instruction