Feature:1. Antifog: Speedometer adopts doublelayer protection, curved glass and high transparent PC material, to avoid fogging on the glass surface and making it impossible to see the instrument clearly.2. High Accuracy: Using imported chips, stepping motor drive pointer, high accuracy, stable performance, every detail has gone through multiple processes, after many inspections, carefully crafted.3. LCD Display: The liquid crystal display clearly shows the mileage, the indication accuracy is high, the repeatability and versatility are strong, the reliability is stable, the drive and control are relatively simple and so on.4. Wide Application: Suitable for automobiles, engines, boats, RVs, yachts, engineering machinery, etc.5. Easy Installation: The GPS speedometer is easy to install. After installing it in the hole, you can tighten the knob by hand and then turn the cover.Specification:Item Type: SpeedometerMaterial: ABSandStainless steelLight Color: Colorful (adjustable)Signal: GPSInstallation Diameter: Approx. 85mm or 3.35in, and ensure that there is at least 55mm or 2.17in space behind the dashboardWorking Voltage: 9-32V DCWorking Current: 100mAIndication Range: 0-60km/hWorking Temperature: -30-and75Storage Temperature: -40-and80Applicable Scenarios: Suitable for automobiles, engines, boats, RVs, yachts, engineering machinery, etc..Package List:1 x Speedometer1 x Gps Receiving Box1 x Manual1 x Screw Cap