Plumbing
Govee
Smart Water Leak Detectors (3-Pack)
Alerts your phone the moment water shows up where it shouldn't.
Read why Sentinel recommends this below. Buying options are at the end of the page.
Installation difficulty
Easy
Estimated time
10 minutes
Warranty
1 years
Why we recommend it
Catches a leak in minutes instead of after the damage is done. It is most useful for water heater pans, under sinks, laundry, sump areas. Compatible with any home with 2.4 ghz wi-fi.
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.
Place one at the water heater, one behind the washer, and one near the air handler's drain pan — the three most common quiet leaks.
What it does
- • 100 dB local alarm
- • Phone alerts
- • Battery powered
Maintenance tips
- • Test each sensor twice a year.
- • Replace batteries at daylight-saving changes.
Frequently asked questions
Where should the first one go?
Next to the water heater — it is the most common source of costly indoor leaks.
Related articles
Where this product is discussed in the Sentinel Resource Center.
How Central Air Conditioning Works
Air conditioning does not create cold. It moves heat. Once that clicks, most cooling problems become easy to reason about.
Why Is My Air Conditioner Leaking Water?
Causes, prevention, and when to call a professional. Most indoor AC leaks are a drainage or airflow problem — not a failed system.
AC Running But Not Cooling? 9 Things to Check Before Calling an HVAC Technician
The system hums along and the air still isn't cold. Here are the nine things a technician checks first, in the order a homeowner can safely check them, plus the clear line where the work stops being DIY.
Related products
Basement Watchdog / Glentronics
Basement Watchdog Water Alarm
A simple battery water alarm for a basement floor, sump pit, or under-appliance pan.
Sentinel Score 85FlexiSnake
FlexiSnake Drain Weasel Hair Clog Remover Tool Kit
Helpful if a bathroom sink or tub drains slowly because of hair near the stopper, before reaching for chemicals.
Sentinel Score 85Fluidmaster
Fluidmaster 400H-002 Universal Toilet Fill Valve
Recommended when a toilet runs continuously or refills slowly because the fill valve no longer shuts off cleanly.
Sentinel Score 85Homeowners often pair this with
First Alert
Combination Smoke & Carbon Monoxide Alarm
Covers both smoke and carbon monoxide with no battery swaps.
Sentinel Score 97Klein Tools
Non-Contact Voltage Tester
Confirms a circuit is truly dead before you work on it.
Sentinel Score 94Filterbuy
MERV 13 Pleated HVAC Air Filter (6-Pack)
Improves HVAC efficiency while reducing dust and allergens.
Sentinel Score 96Ready to purchase?
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:
- Jul 30, 2026