As you cut a wicked wake across the water, know your boat's exact speed with the Sierra® Lido Pro Series Fog-Resistant Speedometer Gauge. Not only is it completely fog-resistant, it also complies with SAE J-1810 standards for accuracy and reliability. This Pro Series boat gauge from Sierra features a curved, scratch-resistant glass lens that's encased by a polished, stainless steel, near-flush bezel. Inside, the white dial displays easy-to-read black numerals, and a black pointer with a fire-orange tip lets you know how fast your boat is traveling. For easy nighttime readings, this marine speedometer has white perimeter and red through-dial lighting. Dial displays speeds from 10 to 65 mph. IP65 waterproof rating. 12V. Completely fog-resistant. Meets SAE J-1810 standards for accuracy and reliability. At a glance, know how fast your boat is traveling. Curved, scratch-resistant domed glass lens. Polished, stainless steel, near-flush bezel. Dial displays speeds from 10 to 65 mph. Easy-to-read black numerals. Black pointer with fire-orange tip. Lit for nighttime viewing. IP65 waterproof rating.