This marine bost gauge is specially designed to measure the fuel level of the marine boat. This item is fully electronic with back , which allows for easy viewing under dark conditions. The measurement range is E-1/2-F. Suitable for most kinds of fuel sensors, and display the liquid level of the fuel tank. Features - With backlight, numbers and clearly show the voltage and for easy reading in . Upgrade machine core ensures more accurate and faster measurement results. - Specially designed to measure the fuel level of the marine boat. The measurement range is E-1/2-F (E means empty, 1/2 means half fuel, F means full fuel). - Suitable for most kinds of fuel sensors, and display the liquid level of the fuel tank. - 2 inches/ 52 mm in diameter, 12v general type volt gauge and meter, applicable to most 12V generators, marine boats, engineering vehicles, racing cars, etc. Specifications - Color: Black - Size: 7x7x6cm - Material: Plastic - Installation diameter: 52mm/2.0" - Measurement range: E-1/ 2-F (E means empty, 1/2 means half fuel, F means full fuel). - Installation method: Lock to baseboard directly or use the holder - Voltage: 12V Package list: 1 x Fuel Level Gauge