The Moen Flo Smart Water Monitor and Shutoff is an inline device that watches a home’s entire water system around the clock. Using FloSense technology, it learns the household’s normal water-use patterns, runs daily micro-leak tests, and can automatically shut off the water when it detects a problem.
Installed in line with the home’s main water line, Flo monitors flow rate and pressure continuously and can detect leaks as small as a single drop per minute. When it spots abnormal use or a leak, it sends real-time alerts through the app, by phone call, and by email — and it can turn the water off automatically to keep a minor leak from turning into major damage. The Moen Smart Water Network app shows water usage and history and lets owners turn the water on or off remotely; the app is free, with no fees or subscriptions required. Moen notes that identifying and stopping leaks can reduce household water waste by up to 90%.
The Flo Smart Water Monitor and Shutoff is a paid hardware product: the 1-inch model (900-006) is listed at $675.99 in Moen’s store. Professional installation by a licensed plumber is recommended, and some insurance providers offer discounts for installed devices.
Homeowners who want strong protection against water damage — one of the most expensive common household disasters — together with clear visibility into everyday water use.