Buoy uses AI and machine learning to keep your water bills low
 

Buoy is a device that puts machine learning to work to save on your water bill. The IoT device connects to your home's WiFi network and water supply to monitor how much is going where on a use-by-use basis (faucet shower, washing machine, etc..), in...

https://www.engadget.com/2017/11/21/...-water-sensor/