Usage Tips:[Accurate measurement] Our digital turbine flowmeter provides accurate readings with accuracy of 1 percent , ensuring reliable data from liquid such as water, , gasoline, , methanol, and E15. [Multifunctional Unit Options] Switch between GAL (Terun), , , L, and M to meet your specific measurement needs and provide flexibility and convenience.Flow range: 2.5-31GPM (10-120 LPM), work pressure: 20 babes. [ structure] This digital fuel meter is designed with Metal, which can withstand environments and provide lasting [Long -lasting] turbine turbine meter has the function of automatic shutdown and opening, which can withstand the bad working conditions of the factory and off -road environment, long service life and reliable performance. [Waterproof level -IPX4] Do not immerse this flowmeter into water, oil or other liquid.It is not a diving design.In order to extend the service life of the built -in electronic board, avoid dipping water on the dial. Colour:As Shown Material:Metal Size:3 or 4 inch Package Contents: 1 set x flow meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.