Features: Precisions digital speedometer for select model boats delivers real time speed tracking (0 100 km/h) with ±0.5 km/h accuracy, featuring IP67 waterproof construction and shock resistant polymer housing. High visibility LCD display ensures effortless readability under direct sunlight, while corrosions resistant engineering and seamless compatibility with marine environments make it ideal for sustained watercrafts performances. Essential for speed enthusiasts and recreational boaters seeking data during jets ski adventures, fishing expeditions, or family cruising on lakes/oceans. Optimizes safety during high speed maneuvers and leisure activities by providing instantly speed feedbacks across choppy waves, calm bays, or competitive racing circuits. Combines advanced digital measurement technology with ergonomic marine grade durability, outperforming mechanical gauges through rapid response time in saltwater/freshwater conditions. Specifications: Part number: 204471378 204471236 204471105 Component: Plastic Package Includes: 1Set LCD Digital Speedometer note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.