Water Flow Meter for RV, Unistyle 3/4" Hose Water Meter with Brass Inlet Metal, ±5% Measure Accuracy, Measure Gallon/Liter Consumption and Flow Rate for RV Water Tank Filling (2 Packs)

These work well. I just wish I could default the reading to something other than gallons per minute. As an RV I generally use gallons used at this usage and I would like to be able to set it on that and leave it instead of having to reset it to that every time it drops out after a use. Not everybody only cares about gallons per minute, and in reality I would bet most people don't care about gallons per minute they care about either gallons for this usage or total gallons used, but at any rate we ought to be able to set this for the specific function we wanted on as default and then if we need to use something else just change it for that. Having it default to the last used function would even be acceptable.

Ordered the water flow meter to keep track of my water use when topping off and filling my aquarium's. Also helps me know how much water has evaporated from the tanks especially during summer.

It came with some adapters but connected fine right out of the box. The round battery was included. There is a little water leakage around the black tank connection but nothing major. I wanted to flush the tank well before storing the RV for winter and knowing how much water I had put in saved a lot of time.All in all, it's a nice addition to my black tank supplies.

Been using this for a few months now, and it works perfectly. Happy with purchase. Seems to be accurate and no leaks.

Does not give the correct reading. It records 10 gallons of flow when I filled fill up a 32 gallon RV fresh water tank.

Works great! A must have for RV systems. Highly recommend

Works great

Worked well