CGOLDENWALL Turbine Flow Meter LCD Digital Display Flowmeter with 1-Inch FNPT Inlet/Outlet, Gas Oil Fuel Flowmeter for Diesel, Kerosene, Gasoline 2-26.4 GPM (9-100 LPM)

The frist 1 I bought did not work at all ,they replaced it at no cost, an it works awesome, we pump approximately 400 gal water threw it daily,(((( Love it))))

Great Company! The first digital meter we received unfortunately was not working properly. However, I reached out to the company, and they responded immediately. I was given some troubleshooting to do, which failed. They immediately expedited a new meter out to me. We installed it and it is working perfectly. Great customer service!! I highly recommend them..

Tried calibrating. First, you have four screws to remove and hopefully not strip the heads to inset batteries. That done, tried to calibrate. The buttons are not very positive, I had to use my fingernails to get them to contact, so you're trying to get contact for 10 seconds... What a pain. The first attempt to calibrate worked ok. Did a test and needed to recalibrate. It would not get to the calibration mode, so... took out four screws and removed the batteries. Put back and then calibrated. Tried once again to calibrate, but it wouldn't! Just flakey junk. Fix the electronics. Otherwise seems physically well built, poorly designed (batteries) and flakey electronics. On their way back to probably be shipped to the next poor soul...

Perhaps the use of this with pvc plastic would be much easier. But, I was using stainless steal. I probably redid this product 6 times. I usually do 3 rotations with the tape then putty on pipes. One side took 9 rotations and the other 12 with putty to finally stop dripping. Otherwise the flow and digital aspects of the product appear working.

Updated 4/30/24 3hrs after install in a closed system, radiant heating system, it developed a load rattle. Readings dropped from 7.2 gpm to 6.6. Now I have to undo it from its NPT couplings to look inside and see what happened. Follow up: Removed the unit and inspected the rotor. It was unbalanced by a small blob of teflon pipe seal compound from one of the joints in the system. Replaced the unit and everything works as expected. Note : the NPT threads are a fraction large and the NPT connector "bottoms out" before making a tight enough seal. I filed the male connector slightly and reassembled. All OK now!