Feature: 1. Rugged Construction: Crafted with a 316L stainless steel front cover bezel and antifog curved glass cover, the digital speedometer gauge is designed to withstand harsh marine environments with a high level of transparency from the curved surface PC and glass structure forming a dual antifog effect. With IP67 waterproof and dustproof rating. 2. 7 Color Backlit Display: Equipped with a seven color backlit digital display, this gauge ensures easy visibility for nighttime use. The digital display offers high accuracy, excellent repeatability, versatility, and reliable stability. 3. Digital and Pointer Display: The innovative design of combining digital and pointer displays improves data visibility and efficiency. Users can effortlessly access speed data without the need to switch between various gauges, enhancing convenience. 4. Wide Voltage Range and High Accuracy: With an extensive operating voltage range of 9‑32V, up to 36V, the gauge exhibits low power consumption, extended lifespan, superior accuracy, and fast startup time, guaranteeing dependable performance even in challenging conditions. 5. Secure Connection and Vibration Resistance: Featuring a snap on wiring design for secure connections, the gauge can withstand intense vibrations, ensuring consistent working. This feature makes it highly suitable for a range of watercraft, including boats, fishing boats, yachts, and outboard motors. Specification: Item Type: 85mm Multifunction Digital Gauge Material: Stainless Steel 316L Bezel + Antifog Glass Protection Grade: IP67, fully waterproof; excellent antifog function, can work at a depth of 1m underwater Backlight Color: Red (default), green, blue, white, yellow, yellow green, orange, purple (color can be switched) Display: Digital + Pointer Operating Voltage: 9-32VDC Operating Current: ≤100mA Operating Temperature: -30℃ to +70℃ Storage Temperature: -40℃ to +85℃ Sensor Wire Length: 3.9m Display Range: 0-300km/h Fitment: Fit for Boats, Yachts, RVs, Trucks, Motorcycles Wiring: 1. Red Wire -- +9-32VDC 2. NC (not connected) 3. Orange Wire -- Backlight (+) 4. Blue Wire -- Power Negative (-). Package List: 1 x Speedometer 1 x Wiring 1 x Wiring with Sensor 1 x Mounting Base Buckle 2 x Nuts 1 x User Manual Note: Ensure there is at least 70mm of space behind the opening after installation!