Features GPS Speedometer: Utilizes GPS signal for high accuracy with a 0-200KM/H display range, adjustable backlight, and low power consumption. Features anti-fog curved glass for clear visibility. Wide Working Voltage: Operates on 9-32V DC, compatible up to 36V, ensuring safe and reliable performance. Application: Suitable for use in automobiles, marine boats, yachts, RVs, and engineering machinery, offering strong practicality. IP67 Waterproof: Constructed with high-grade 316 stainless steel and ABS material, providing IP67-rated waterproof and dustproof protection for long-term durability in harsh environments including exposure to moisture, acids, and alkalis. Easy Wiring and Installation: Comes with a detailed manual outlining installation, wiring, and functions for convenient setup and use. Specification Item Type: GPS Speedometer Material: Stainless Steel + ABS Light Color: Colorful (adjustable) Signal: GPS Mounting Hole Diameter: Approximately 85mm (3.3 inches), requiring at least 55mm (2.2 inches) of clearance behind the dashboard Working Voltage: 9-32V DC Working Current: 100mA Display Range: 0-200KM/H Working Temperature: -30C to +75C Storage Temperature: -40C to +80C Applicable Scenarios: Designed for use in automobiles, boats, RVs, yachts, engines, and engineering machinery. Package List 1 x Speedometer 1 x GPS Receiver 1 x Manual 1 x Cover