Feature 1Wide Application: The speedometer is suitable for a full range of stepping instruments, and can be used for automobiles, engines, ships, RVs, yachts, construction machinery, etc. 2Characteristic: Speedometer has the advantages of low power consumption, long life and high accuracy. Ultra wide working voltage design, long term working voltage 932V, up to 36V. 3IP67 Protection: With IP67 high waterproof and dustproof grade, curved glass, anti fog, not afraid of bad weather, not easy to damage. 4Premium Material: The GPS odometer is made of stainless steel and ABS. It can be used in acid, alkali and humid environments. It is durable and has a long service life. 5Simple Installation: Easy to install, the package includes user manual, and clearly describes the installation, wiring and use functions.Item Type:GPSSpeedometerMaterial: Stainless Steel + ABSDial Color: Black, WhiteDial Backlight Color: RedSignal: GPSRange: 0-140MPH; 0-220km/h (dial double scale, inner ring km/h, outer ring MPH)Working Voltage: 9-32V DCInstallation Hole Diameter: 85mm/3.35in, and ensure that there is at least 55mm/2.17in space behind the dashboardWorking Temperature: -30-+75Storage Temperature: -40-+80Applicable Scenarios: Universal for automobiles, engines, boats, RVs, yachts, engineering machinery, etc. .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 Speed Gauge1 x Manual1 x GPS Receiver