aluminum, longer quality-using aluminum (back) and plastic material, rust-proof and wear-resistant, long service life perfect tool for and gasoline-this series of flow meters are used for non-commercial purposes, mainly for and gasoline Easy to install and provide you with stable and reliable counting-this flowmeter is reliable, easy to install and proofread Large display screen is easy to read and use- has a large display screen, easy to read, quick return to zero rotation, flexible horizontal or vertical installation, etc. Manual return to zero-with a mechanical flowmeter, the handwheel can be raised manually to return to zero, and the cumulative accumulation does not return to zero High inch 4 digital gas fuel oil flow meter counter meter Colour: Black Material: Aluminum and ABS Specification: Model: FM-120-2 Unit: liters/US gallons/imperial gallons. Flow range: 5-30 GPM/20-120L/Min Accuracy: 1% Nominal diameter: 25mm (1 inch internal thread) Medium: Product Type: Mechanical Counting: four times counting (returnable to zero), eight times accumulating (non-returning to zero) Installation direction: vertical or horizontal Working pressure: 0.04 Mpa Maximum working pressure: 50psi / 3.5bar Size: 18 x 15 x 13.5cm / 7.09 x 5.91 x 5.31in Weight: 1984g Package Contents: 1 x Four-digit flow meter Only the above package content, other products are not included. Note: Light 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.