Savant Flow Totalizer and Flow Rate Meter 3/4" NPT for Water Filter

I purchased this to monitor the water usage in my RV and it seems to work great. I placed it in the line on the discharge side of my pump. I checked it for accuracy, and it appears to be good.

I purchased 4 of these monitors to give a visual flow output of external canister filters on my 2 large aquariums and the work very well, one does seem to have a fairly higher reading than the other 3 by over 2 liters a minute (4x identical filters, make model media etc..) Only a few minor issues, battey life (with the supplied batteries) is poor, the option of an external power source for constant monitoring would be good. hopefully with longlife batteries from a well known brand they may last longer!! Screen is hard to read when installed in an aquarium cabinet, a backlight would be a huge improvement. Instructions don't tell you how to switch between Litres & gallons per minute, when you find out how to do it it is very simple and only a few lines of short instructions would need to be added to paperwork !! Overall a very good little unit for the money.

Great for flow and metering.

Well... This thing doesn't work at all. Installed, new batteries, and it doesn't register any flow rate or usage. Yes the arrow is in the right direction. The PSI on the water line is 50... Simply doesn't register anything.

Bought it to monitor water consumption while boondocking in my RV. It has been just over a year, and many boondocking outings since purchase. Still has the same batteries. Seems to measure usage reasonably well. No complaints here.

I found the total gallons measured to be very inaccurate, about +28% inaccuracy. I have not tested the measured flow rate as I purchased it strictly to monitor the amount of gallons used and because of its inaccuracy I am very disappointed with the product. The product spec claims an accuracy of +/-7%, it’s not even close.

I have gone through three of these in all cases they work well for three or four months on my Reef aquarium. But the batteries die very quickly, and the connection tends to get corroded and not work after a while.

The meter works great. I pump water from a creek and wanted to know how much I pump.