1 Inch Digital Fuel Flow Meter, 2.6-26 GPM Inline NPT Turbine Flowmeter with 3/4 in Adapters for Water, Diesel, Gas Oil, Gasoline, and Other Liquids - Supports Gallon, QTS, PTS, L, m³

Used it with water to gauge tanks. Accuracy is good enough out of the box, it was within 3 gallons on a 1000 gallon tank so I didn't even bother to calibrate it for accuracy. Ran it consistently at 10-12 gpm.

I hooked this up to a pump out sap line. I wanted to see how accurate it would be so I filled up a 5 gallon pail first when I was done filling up the meter Reas 11 gallons. It was 5 gallons.

Doy 4 estrellas por que aún no lo he usado, pero su apariencia dice mucho del producto, buen precio, robusto, bien empacado, recibido en el tiempo estipulado, considero que ha sido una muy buena compra.

This flow meter is built sturdy. It is heavy and should withstand a good amount pressure due to its design within specifications. It has an easy to view LCD screen with two push buttons, and the fittings are standard size available at any hardware store. It is made for oil and fuel, or any other liquid process such as water, which means it can operate in a harsh environment. I use it to monitor the flow of water in my house feed; it does work well for that. It literally has two buttons; one for settings and one for calibration. I have it set to Gallons-Per-Minute. A test to make sure it is working: blow in the inlet and the air will cause a deflection on the display. Thee unit was on when I pulled it from the box. I took it from the box and the LCD was displaying all zeroes. LCD's do not draw much power; I imagine at some point the battery might need replacing. It appears to be an always-on unit. A data port would have been nice; but hey its still a very useful flow meter. My use case is home monitoring. At some point I plan to put a cheap camera pointed at the LCD to remotely monitor water pressure. The document is included, and it is easy to understand.

The impeller failed after 1.5 months. Factory settings are far off of actual flow rates. Was using it on a 5GPM water system. Read 3.5 gpm at peak flow while manually measuring at 5 GPM.

This digital fuel flow meter has made refueling our tractors and trucks on our homestead much easier, from a volume/monitoring perspective. This flow meter allows us now, to see precisely how many gallons of diesel we have dispensed in total and per instance. I mounted it directly to the end of our dispenser handle, which is working perfectly for us, as we now have nearly the same fuel filling experience that you'd have at a commercial gas pump, yet from a 1000 gallon, elevated, gravity-fed home dispensing fuel tank. It's very easy to install (obviously) and once installed, it's hardly noticeable from a weight standpoint, between the dispenser handle and the fuel hose. The display screen is easy to read, even in direct sunlight, which was a pleasant surprise. Precautionarily, we do protect our entire fuel storage system, including this flow meter, from direct sunlight though, throughout the day. I have no idea (only speculation) that it's probably best to keep direct sunlight off of a digital screen such as this, as much as possible, to prevent premature failure. Anyhow, we couldn't be more pleased with this great little device and therefore, highly recommend it to others who would appreciate such a device.

Had to return unit. Accumulated total volume is erasable; I needed one that is permanent and also total accumulated units do not maintain integrity when selecting different volume units

Mine doesn't work only weeks after installing it. Hope others have better luck than I have