Quick Overview An Easy And Affordable Solution To Determine Your Speed Over The Water. Autometers Pitot Tube Style Speedometers Are Essentially A Precisely Calibrated Pressure Gauge. Speed Is Determined By Measuring The Water Pressure Entering The Pitot Tube That Extends Into The Water In The Path Of The Boat. This Is Translated Into Miles Per Hour To Give You An Accurate And Reliable Indication Of Your Speed. This Is A Time Tested Design That Is A Great Option For Most Any Watercraft. Features front sealed bezel design for added water resistance and UV protected paint on dial pointer for added protection against sun damage Requires pitot tube (sold separately) Includes bulb and socket assembly with red and green bulb covers Includes gauge mounting hardware and installation instructions 12 month limited warranty Traditional incandescent lighting illuminates around the perimeter of the dial Attributes: GTIN: 00046074118180 Brand Name: AutoMeter Add-On: N/A Extended Information: Country of Origin: United States Emissions : Released Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 6.5 x 5 x 7 inches Weight: 1 lb