Sierra Marine Amega Series 3'' Speedometer
Features: waterproof and scratch-resistant domed glass lenses, magnetic shielding, silicone dampening, powerful vector movement, American and Metric scales. Sierra Marine Amega gauges have white and red graphics on a black dial, and have a through-dial and white pointer. Also features night displays due to a combination of through-dial and perimeter lighting. Requires 3-3/8" hole for installation.