1.5 Inch NPT Digital Flow Meter, 10.5-74 GPM Inline Fuel Turbine Flowmeter with LCD Display 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.

Helps me keep up with how much I have taken out of my storage fuel tank. It does not have a fuel gauge or site glass...nothing like that. So in the past I tried to just guess how much I had removed x how many times I had removed it. Sometimes, I thought I had fuel left in the supply tank but was just wrong.Now I have a much better idea of when I need to get the tank filled BEFORE it is empty. So I don't have something needing fuel but I can't fill it because the storage tank is also empty...but I did not know till I actually tried to get fuel from it.It works well, and seems to be very accurate. It has been very helpful.

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 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.

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