Feature 17 Colors Backlit: 7 solid color backlit settings will meet your requirement. You can switch color of light you like, colors Include Blue, Red, Green, Teal, Purple, White and Yellow. 2Accurate Display: The GPS speedometer gauge has the advantages of high accuracy, quick location confirmation, and short start up time for convenient use. 3Versatile Usage: The multifunctional speedometer suitable for all car, marine, boat, truck, bus, motorcycle and off road vehicles, catering various mounting needs. 4Easy Installation: Directly from the satellite signal receiver (GPS Antenna), this electric speedometer don't need other speed sensors, saving your time and effort. 5Wide Indicating Range: The indicating range of the speedometer is 120mph, tachometer is 8000rpm, and fuel level gauge is E-1/4-1/2-3/4-F, accurately showing the status while driving.Item Type: 3 in 1 GPS Speedometer Voltage: DC 8-16VSpeedometer: 120MPHTachometer: 8000RPMFuel Level Gauge: E-1/4-1/2-3/4-FBacklight: 7 ColorsFitment: Suitable for RV, Yacht, Truck .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Speedometer1 x Instruction Manual1 x GPS Connection Harness