Flo by Moen 1-1/4" Smart Home Water Monitoring and Leak Detection System
Description
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Bring smart plumbing to your home with Flo by Moen. This Smart Home system is the first water security system that monitors and protects your home from leaks and water damage with a single smart water valve, no additional sensors needed. Designed by plumbing and tech industry professionals, Flo by Moen is installed on the main water supply line of the home. Through the Flo by Moen mobile app or your web browser, you can see live water use, including water flow rates, pressure and even temperature. If the smart water valve detects an issue (e.g. high pressure, freezing water or a small leak) it will alert you through the app so you can fix it before that issue causes damage. If there's a catastrophic failure, like a burst pipe or someone leaves the water running, you'll be alerted in the app allowing you to shut the water off - no matter where you are.
Product Features
- The Smart Water Valve for the Security of Your Home’s Water
- Remote and automatic options to shut off valve help to prevent catastrophic damage
- 24/7 protection from catastrophic water damage, allowing you to turn your water on/off from the app manually, or Flo by Moen will automatically turn off the water for you to protect the home
- Daily leak tests using MicroLeak Technology that proactively monitors the security of the home's entire water system (including behind walls and in foundations) to identify leaks as small as a drop per minute (e.g. pinhole leaks, etc.)
- Get all of your alerts in real-time through your Flo by Moen app
- FloSense Technology enhances Flo the device security parameters and optimizes water savings by understanding the homes water use and tailoring protection to each home
- Use the app Dashboard to see how much water you're consuming daily and set conservation goals to encourage saving water and money for your home
- See live water use including: water flow rate (gpm), pressure (psi) and temperature using the apps control panel
- See historical data of your home's water consumption
- Compatible with 1-1/2 in. or smaller pipe diameter (consult a professional)
- Compatible with: Alexa skills, Google Assistant and IFTTT; no smart hub or system required; requires Wi-Fi connection; requires standard AC/DC power connection
- No point sensors or other leak sensors needed
- smart home
| Product Type: |
Leak Detector |
|---|---|
| Size: |
1-1/4" |
Whole-Home Water Protection, Explained
Why a Whole-House System Is Different from Point Sensors
Traditional leak detectors are placed at individual risk points — under a sink, near a water heater, behind a washing machine. They only catch leaks that happen to occur right where the sensor sits. Flo by Moen takes a fundamentally different approach: instead of watching specific spots, it monitors the entire water supply for your home from a single point of installation — the main water line — using flow, pressure, and temperature data to detect problems anywhere in your plumbing system, including inside walls, under slabs, and behind finished surfaces where a point sensor could never reach.
How MicroLeak Detection Works
Every day, the system runs an automated test on your home's plumbing, watching for microscopic changes in water flow and pressure that indicate a leak — even one as small as a single drop per minute. This is what allows it to catch:
- Pinhole leaks in aging copper or galvanized pipe, long before they cause visible damage
- Slow leaks behind walls or under foundations that would otherwise go undetected for months or years
- Toilet flapper leaks and other "invisible" sources of water waste
What Happens When a Problem Is Detected
| Situation | System Response |
|---|---|
| Minor leak or unusual usage pattern | App notification so you can investigate and repair |
| High water pressure | Alert, since excess pressure stresses pipes, fittings, and appliances |
| Freezing pipe conditions | Early warning based on temperature monitoring |
| Catastrophic event (burst pipe, running water) | Immediate alert and automatic shutoff — even if you're not home |
You can also manually shut off or turn on your home's water directly from the app — useful when leaving for vacation, dealing with a plumbing repair, or responding to a suspected issue in real time.
FloSense: Learning Your Home's Water Behavior
Rather than relying on generic thresholds, FloSense technology studies your household's specific water usage patterns over time — how showers, laundry, irrigation, and appliances normally behave in your home — and uses that baseline to tell the difference between routine use and a genuine anomaly. This reduces false alarms while improving sensitivity to real problems.
Beyond Leak Protection: Water Usage Insights
The Flo by Moen app doesn't just protect against damage — it also gives you visibility into your household's water consumption:
- Live water flow rate (GPM), pressure (PSI), and temperature
- Historical usage data to track trends over time
- Conservation goal-setting to help reduce water waste and lower utility bills
Compatibility and Smart Home Integration
- Works with Alexa, Google Assistant, and IFTTT — no separate smart hub required
- Requires a Wi-Fi connection and standard AC/DC power
- Fits 1½" pipe diameter or smaller on the main water line
Professional Installation Matters
Because this device is installed directly on your home's main water supply line — not just plugged in near an appliance — proper installation is essential for both function and warranty coverage. Our licensed plumbers will:
- Confirm your main line size and material are compatible
- Install the valve in a location that allows full monitoring of your home's water system
- Connect the device to your home Wi-Fi and complete app setup
- Walk you through manual shutoff, notification settings, and FloSense calibration
- Test the automatic shutoff function before completing the job
How This Compares to Point-of-Use Alarms
If you already use — or are considering — standalone alarms like the Zoeller Flood Alert Model 10-0763 or the Moen Flo Smart Water Leak Detector, think of them as complementary rather than redundant: point sensors catch visible leaks exactly where they're placed, while the whole-house Flo system catches hidden leaks anywhere in your plumbing and can shut the water off automatically — something a point alarm alone cannot do.
Frequently Asked Questions
Does this replace my main water shutoff valve?
It integrates with and controls your main line, effectively becoming your smart shutoff point — but installation and configuration should be handled by a licensed plumber to ensure it's positioned correctly.
What happens if my Wi-Fi goes down?
The valve will continue operating based on its last known settings, but real-time app alerts and remote shutoff require an active Wi-Fi connection.
Can it detect leaks in outdoor irrigation systems?
Yes — since it monitors the entire main supply line, unusual flow from irrigation lines connected to that line can also be detected.
24/7 Smart Leak Protection, MicroLeak Detection & Automatic Main Water Shutoff
The Moen Flo Smart Water Monitor and Automatic Shutoff is an industry-leading smart home plumbing security device installed directly on your main water supply line. Powered by proprietary MicroLeak™ technology, Moen Flo continuously tracks water pressure, flow rate, and ambient temperature, executing automated daily health checks to detect invisible micro-leaks behind walls or under foundation slabs. If a burst pipe, fixture rupture, or catastrophic plumbing failure occurs, the unit instantly shuts off your home's main water supply automatically and sends real-time smartphone alerts. Call our licensed plumbing specialists at (224) 754-1984 for expert main-line installation and smart home integration:
Automatic Emergency Main Line Shutoff: Automatically turns off the main water valve within seconds of detecting a catastrophic leak or pipe burst to prevent widespread flooding.
Patented MicroLeak™ Health Tests: Runs daily automated pressure checks to pinpoint pinhole leaks, toilet flapper drips, and hidden fixture leaks as small as a drop per minute.
Real-Time App Alerts & Remote Control: Receive push notifications, phone calls, and texts via the Moen Smart Water app—and control your main water valve from anywhere in the world.
Smart AI Water Usage Tracking: Learns your household's unique water consumption habits to set custom protection thresholds and help lower monthly water utility bills.
Homeowners Insurance Discounts: Installing a Moen Flo smart shutoff device often qualifies homeowners for up to 10%–15% annual discounts on property insurance premiums.
Moen Flo Smart Water Monitor Technical Specifications & Features
Designed for seamless inline installation on standard residential copper, PEX, or CPVC main lines:
Technical Parameter Feature & Specification Details Operational Advantage Manufacturer & Model Moen (Flo Smart Water Monitor & Shutoff) Premier smart plumbing technology backed by Moen's lifetime warranty. Line Size Compatibility Available in 3/4", 1", and 1-1/4" NPT Sizes Fits virtually all standard residential and commercial water mains. Sensor Suite Ultrasonic Flow, Static Pressure, & Temp Sensors Triple-threat monitoring detects micro-leaks, pressure surges, and freezing pipes. Connectivity & App 2.4 GHz Wi-Fi / Moen Smart Water App Standalone connectivity requiring no central smart home hub. Smart Home Compatibility Amazon Alexa, Google Assistant, & IFTTT Voice command support and automated smart home routine triggers. Power Requirements 120V AC Power Outlet + Optional Battery Backup Continuous line power with weatherproof cabling and surge protection.
Key Benefits of Upgrading to Moen Flo Smart Water Security
Installing a Moen Flo Smart Water Monitor transforms your home's main plumbing into an intelligent, self-protecting network:
Prevents Catastrophic Water Damage Claims: Stops major leaks instantly before drywall, hardwood floors, furniture, and personal possessions are destroyed.
Catches Freeze Risks Before Pipes Burst: Built-in temperature sensors notify you if ambient utility room temperatures drop to freezing levels.
Eliminates High Water Bill Surprises: Pinpoints running toilets, leaking irrigation valves, and dripping spigots that waste thousands of gallons silently.
Zero Hassle Vacation Peace of Mind: Set the device to "Away" mode when traveling so any abnormal water movement triggers an immediate shutoff.
Our Step-by-Step Moen Flo Installation Process
Main Line Sizing & Valve Inspection: Inspecting your home's main water supply entry point, pressure reducing valve (PRV), and selecting the correct 3/4" or 1" Moen Flo unit.
Precision Inline Cutting & Brass Fitting Assembly: Splicing the device directly inline after the main shutoff meter using code-compliant brass tailpieces and dual union connections.
Electrical Wiring & Weatherproof Conduit Setup: Routing power leads to a nearby GFCI outlet or installing an optional battery backup power unit.
Wi-Fi Pairing & App Calibration: Syncing the device to your 2.4 GHz Wi-Fi network and configuring baseline water pressure settings in the Moen app.
Simulated Leak & Auto-Shutoff Verification: Executing a manual shutoff command test and triggering a simulated leak to verify instant motor valve closure.
Frequently Asked Questions: Moen Flo Smart Water Monitor
Q: What happens if my home loses Wi-Fi or electricity?
A: The Moen Flo device has onboard memory. If Wi-Fi drops, it continues to monitor water flow locally and will still automatically shut off the water if a critical pipe rupture occurs. If power is lost, the valve stays in its last open/closed state unless an optional battery backup module is installed.
Q: Can I manually turn my water on or off if the app or power is down?
A: Yes. The Moen Flo unit features an integrated manual hex knob switch on the housing, allowing you to manually open or close the valve using the included hex key wrench without electrical power.
Q: Will Moen Flo shut my water off while I am taking a long shower?
A: During the first 7–10 days, Moen Flo enters a "Learning Mode" to analyze your routine water habits. If continuous high usage occurs outside normal patterns, the app sends a warning notification giving you time to override the shutoff before action is taken.
Q: Does installing Moen Flo reduce home insurance rates?
A: Yes. Most major home insurance carriers recognize automatic main line water shutoff devices as major risk reducers and offer discounted home insurance policy premiums upon receiving an installation certificate.
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