Feature: 1. Wide Application: The multiple display speedometer is extensively applicable to full range of stepping instruments, can be used for car, engine, boat, RV, yacht, engineering machinery, etc. 2. High Quality Material: The speed meter is carefully made of stainless steel and ABS with excellent resistance to acid, alkali and humid, durable and have a long service life. 3. IP67 Waterproof: The speedometer features IP67 waterproof and dustproof performance, with curved glass, anti‑fog, no need to worry about the damage caused by bad weather. 4. Excellent Characteristics: Low power consumption and high accuracy. With ultra‑wide working voltage design, the long‑term operating voltage is 9 to 32V, maximum can up to 36V. 5. Easy to Install: The mileage gauge is designed with simple structure and comes with a detailed manual, will clearly describe the installation, wiring and use functions. Specification: Item Type: Speedometer Material: Stainless Steel + ABS Screen: LCD Backlight Color: Colorful (Adjustable) Signal: GPS Measuring Range: 0-160MPH Installation Diameter: Approx. 85MM/3.35in, and ensure that there is at least 55MM/2.2in space behind the dashboard. Working Temperature: -30℃ to +75℃ Storage Temperature: -40℃ to +80℃ Application: Universal for automobiles, engines, boats, RVs, yachts, engineering machinery, etc. . Package List: 1 x Speedometer1 x GPS Receiver1 x Manual Note: 1. The default tip is a single mileage, which will not be cleared even power off. Press and hold the rubber on the back for five seconds to clear the single mileage.2. The accumulated mileage will not be cleared if the power is off (the total mileage cannot be cleared).3. COG is to display the direction of the ship navigation and the car direction.