Plumbing
Moen
Moen 920-005 Flo Smart Water Leak Detector, 3-Pack
Helpful for monitoring the three places small leaks usually start: the water heater, the laundry area, and under sinks.
Price, rating, availability, and delivery details are shown on Amazon. Sentinel publishes those figures only after an administrator verifies them.
Requires Wi-Fi and the manufacturer's app for remote alerts.
Read why Sentinel recommends this below. Buying options are at the end of the page.
Installation difficulty
Easy
Estimated time
15 minutes
Warranty
Not applicable
Why we recommend it
Helpful for monitoring the three places small leaks usually start: the water heater, the laundry area, and under sinks. It is most useful for surfaced with leak prevention, water-damage guidance, and appliance protection.. Compatible with requires wi-fi and the manufacturer's app for remote alerts..
When you’ll need it
- • Before extended time away from home
- • When a fixture or supply line is over 5 years old
- • After any leak, however small
Who benefits most
- • Homes with finished basements
- • Second-floor laundry rooms
- • Homeowners who travel
Before you buy
Honest guidance — you may not need this at all
- • If your supply lines were replaced recently, inspect first — replacement may not be due yet.
Read the manufacturer's instructions once before you start — most homeowner mistakes happen in the first five minutes.
What it does
Maintenance tips
Frequently asked questions
Related articles
Where this product is discussed in the Sentinel Resource Center.
AC Condensate Drain Clogged? What Homeowners Should Do Before Water Damage Starts
A clogged air-conditioning condensate drain can turn a small maintenance issue into ceiling, flooring, drywall, or equipment damage. Learn the warning signs, what you can safely check yourself, and when it's time to call an HVAC professional.
How to Flush a Water Heater: A Step-by-Step Guide to Help Extend Its Life
Flushing sediment out of a tank water heater is one of the few maintenance tasks that measurably affects how long the tank lasts. Here is the order of operations, the reason behind each step, and the point where you should stop and call a professional.
Where Should You Put Water Leak Detectors? 10 Places That Can Help Prevent Expensive Water Damage
A small leak can stay hidden behind an appliance, underneath a cabinet, or beside a water heater long enough to damage flooring, drywall, cabinets, and other materials. Leak detectors can provide earlier warning — but placement matters.
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If this product fits your home's needs, you can purchase it through one of our trusted retail partners.
Why this matters
Spending $25–$75 today on preventive maintenance can often help homeowners avoid repairs that cost hundreds or even thousands of dollars later. Sentinel Home recommends products that support long-term home protection — not impulse purchases.
- Retailer:
- Amazon
- Last verified:
- Aug 20, 2026