Product Description: Elevate Your Navigation with the GPS Tachometer and Speedometer Multi-Functional: This 85mm GPS tachometer offers a comprehensive display of single mileage, total mileage, and COG trip functions. Easily track your journey details with clear, precise readings on the digital screen. Advantages: Enjoy the benefits of high accuracy and fast position confirmation with this GPS speedometer. It features a short starting time, low power consumption, and a long service life, making it a reliable choice for all your navigation needs. High Accuracy: Equipped with a stepping motor, this device drives the pointer for accurate engine speed display. It includes left and right steering indicators and a headlight switch display function, ensuring you have all the information you need at a glance. Waterproof and Antifog: Constructed with a stainless steel 316L frame and anti-fog glass, this GPS speedometer is designed to withstand the elements. Its waterproof and dustproof features, along with polarity protection and anti-fog performance, ensure durability in various conditions. Colorful Backlit: Customize your display with 7 adjustable backlight colors, including red, yellow, orange, green, blue, purple, and white. This feature is especially convenient for night use, providing optimal visibility. Universal Application: Operating on DC 9‑32V, this GPS tachometer is versatile and suitable for a range of vehicles and vessels, including RVs, yachts, fishing boats, ships, motorcycles, and automobiles. Perfect for both personal and professional use. Upgrade your navigation system with our advanced GPS Tachometer and Speedometer. Experience the perfect blend of functionality, accuracy, and durability, making it an essential tool for anyone seeking to enhance their driving or sailing experience.