【GPS Speedometer】ARTILAURA large GPS Speedometer size: 110mm 4-3/8", Indicating range: 0-80MPH 【Function】7 Solid Color Settings will meet your requirement. You can switch color of light you like-Colors Include Blue, Red, Green, Teal, Purple, White & Yellow 【Material】Boat GPS speedometer is made of Stainless Steel 316L Bezel and Convex Anti-fog Glass. IP67 waterproof and dustproof grade 【Wide Applicability】Marine GPS Speedometer uitable for all vehicles Car/ Marine/ Boat/Truck/Bus/Motorcycle and off-road vehicles. It gets quicker under a clear view of the sky. The signal comes directly from the satellite signal receiver(GPS Antenna), don't need other speed sensor 【Package】Included 1x GPS speedometer, 1x GPS Antenna, 1 x Wire Harness, 1x Installation Instruction ARTILAURA 110mm 4-3/8" Boat GPS Speedometer 7 Color 80 MPH GPS Speedometer Gauge Antenna for AUTO Marine(Black&Silver)