flumewater.com/

With rebate from Marin Water, this is reasonably priced. It is a snap to install.

The Flume water meter is fantastic! It’s helped my family become much more mindful of our water usage, significantly reducing how much we use. Plus, it offers the peace of mind that we don’t have any leaks. Shipping was super fast! Worth every penny! Highly recommend it—super cool device!

Product seems to be working well and it was easy to install.

Please tell me where I can order extender battery.

did great.