A good water flow meter to monitor home usage with Arduino I'm searching for a good water flow meter to add to my home controller project with Arduino. I have been searching in several pages and I only found some devices that work for low flow.  I need to control the water usage in my home and I thought to add a flow meter at the point where the water enters my home, and view the data with Arduino.

Do you have experience with any flow meter with good quality?
I've used an arduino with an irrigation flow meter. 

I think I'm getting accurate results, but I haven't checked against a bill. It can handle high flow, and the sensors will attach to any size pvc line. The sensor are a bit expensive, however. $150 for the sensor and $35 for the T junction that it plugs into. 

However, as you are living in an apartment, you'll probably need a non-invasive sensor. Perhaps an acoustic one.