P3 P0550 Water Meter

I picked these up with plans to revamp my watering system, and although it took me a while to get around to it, once I did, I enjoyed seeing my water usage with both of these.However, after the first year, I started to notice problems with one not measuring flow rate anymore, even though the battery was fine and the screen still lit up. The numbers just didn’t increase.Then the other one started acting flaky, and neither one of them was recording flow, yet both still had power. (Update: that second one seems to be working again, for now, so I will put it back in the “flaky” category, not the “broken” category. The other one doesn’t seem to want to play along, though.)Update #2: I am bumping this back up to five stars, because when I removed the one that wasn’t working, I noticed that there was something caught in the tiny impeller blade that measures the flow, and once I cleared that out, it started working again just fine.It’s not a very complex mechanism, it just has this tiny fan blade inside of it, and once it was clear, I could blow air through it and see the numbers increase. So, I once again recommend these, both are working, and if you run into any troubles, take it off and make sure you can spin the little fan inside. ?