Moen Flo Smart Water Monitor
VERDICT
This is arguably the most "essential" smart home device on this list. While lights and speakers are fun, the Moen Flo protects your biggest asset: your home. The MicroLeak technology is incredibly sensitive, detecting issues you can't even see yet. Many insurance companies even offer a discount if you install one.
The Big Picture
Unlike water sensors (pucks) that only alert you when the floor is already wet, the Moen Flo stops the problem at the source. It monitors pressure, flow rate, and temperature 24/7. It learns your habits over time—so it knows the difference between "filling a bathtub" (normal) and "a pipe burst in the basement" (emergency).
🛡️ Automatic Shutoff
The Safeguard: It acts when you can't.
How it works: If the device detects catastrophic flow (or a small leak that runs for too long), it triggers the motorized valve to cut off the water supply to the entire house instantly. You can also open/close the valve remotely from the app (great for vacation homes).
🩺 Daily Health Tests
Proactive checkups.
Function: Every night, the Flo shuts off your water for a few minutes (while you sleep) to run a pressure test. If the pressure drops while the valve is closed, it means there is a tiny leak somewhere in your plumbing system (like a running toilet), alerting you before it wastes gallons of water.
✅ The Pros
- Peace of Mind: Never worry about water damage again.
- MicroLeak™: Can detect drips as slow as one drop per minute.
- Insurance: Often pays for itself via home insurance discounts.
- No Hub: Connects directly to Wi-Fi.
❌ The Cons
- Installation: Requires cutting your main water pipe; you likely need a professional plumber.
- Power: Needs a nearby electrical outlet (plug-in), which isn't always available near the main valve.
- Learning Curve: Might shut off water accidentally during the first week while "learning" your habits.
🤔 Should you buy it?
YES if you own a home, travel frequently, or have old plumbing.
NO if you rent an apartment (you can't install it on the main line; get leak sensors instead).
See the showdown: Moen Flo vs. Phyn Plus Comparison