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Navy blue smart water shutoff valve with a pale blue lever handle and brass pipe couplings top and bottom.
Smart Home Pick

Flo Automatic Water Leak Detector and Shutoff

Sits on the main line watching flow, pressure and temperature, runs a daily leak test, and shuts the water off itself.

What you're getting

  • Monitors flow, pressure, and temperature on your main water line to catch unusual patterns.
  • Runs an automated daily leak test so problems surface before damage spreads.
  • Shuts off water automatically when a leak is detected, stopping a flood before it starts.
  • Catches hidden leaks in walls and under floors that a human would never notice.

Why we picked it

This sits on your main water line and watches for the flow and pressure changes that signal a leak, then cuts the water automatically. Daily self-tests catch problems overnight.

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