1IP67 Waterproof: The Gps speedometer features a durable 316L stainless steel bezel and an IP67 waterproof and dustproof rating, making it suitable for use in harsh marine and outdoor environments. 2Wide Voltage Design: With a working voltage range of 9?32V and a maximum rating of 36V, this Gps speedometer is designed for low power consumption, longer life, and fast startup. 3Digital Display: The speedometer displays speeds from 0?999KMH in digital format with an LED backlight for easy readability even in low light conditions. The high accuracy and simple design make it easy to use. 4Fog Proof: The dual layer design of high transparency Pc and glass provides superior antifog performance, ensuring accurate speed readings even in foggy conditions. 5Wide Application: This boat speedometer features a solid locking design that can withstand strong vibrations and is suitable for various marine vehicles such as boats, yachts, and outboard motors.