water alarm
Worth a lookShows a sweet-spot price point ($30.86 avg), but soft demand (-6.1% this quarter) keeps it on the watch list.
Avg price
Incredible$30.86avg listing price — sweet spot $15–$100
Price range
Great$10.15–$59.48cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great7.9%search→purchase rate — share of searches ending in a sale
Market size
Great$945K$945K/yr · 386K searches
Returns
Good2.5%return rate — above 5% kills the launch gate
Review moat
Okay1,780.29avg incumbent reviews — the moat a new listing must climb
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-6.1%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, water alarm is a $945K/yr Amazon United States market (386K searches/yr). The top 5 brands hold 77% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
water alarm market data
- Units sold / yr
- 30K–40K
- avg 1,500–2,000/product
- Revenue / yr
- $926K–$1.2M
- units × avg price
- Conversion rate
- 7.9%
- Avg BSR
- #21
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 5.3%
- Avg brand age
- 60 months
- Avg seller age
- 147 days
Competition & brand share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.Brands
13 falling
Sellers
47
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
61%
Top 20: 99%
Open market
18%
- METAK31%
- GoveeLife25%
- BASEMENT WATCHDOG12%
- STECHRO5%
- Flood Buzz5%
- Geevon4%
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — -6.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top water alarm search terms
- water alarm89K/yr
- water alarm leak detector89K/yr
- water sensor alarm42K/yr
- water leak alarm36K/yr
- water alarms for basements32K/yr
- water alarms13K/yr
- moisture alarm12K/yr
- basement water alarm12K/yr
- water alarm sensor13K/yr
- water alarms for under sink7K/yr
Top water alarm products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm 3 Pack
GoveeLife$39.924.4★2,327 rev
5 Pack Water Leak Detectors for Home 100dB Water Sensor Alarm for Basement Flood Leakage Detection Devices for Pipe/Drain/Sink/Faucet Drip Alert Floor Flooding in Bathroom/Kitchen/Toilet/Laundry Room
METAK$37.024.6★1,064 rev
Water Leak Detector Sensor Alarm: Home Water Flooding Monitor Smart Sink Overflow Monitoring Adjustable Wet Moisture Alert Pipe Leakage Drip Detection Warning for Basement Floor
METAK$10.154.6★1,397 rev
The Basement Watchdog 110 dB Water Alarm w/Detachable Sensor for Hard-to-Reach Areas (BWD-HWA)
BASEMENT WATCHDOG$12.954.7★8,643 rev
5 Pack Water Leak Detectors for Home Stechro 4 Levels Adjustable Audio 0-120dB Water Sensor Alarm Leak Detector with Leak and Drip Alert IP66 Water Leak Sensor for Basements Kitchen Sink Laundry
STECHRO$28.114.6★433 rev
Newest
by launch date
BLIZONTE Water Leak Detector 3 Pack 5-Year Battery Life Water Alarm with Low Battery Warning 100dB Loud Sound and Self-Test Function IP66 Waterproof for Home Basement Kitchen(Not Support Wi-Fi)
Blizonte$18.0464 rev
GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm 4 Pack
GoveeLife$50.312,327 rev
TECKNET WiFi Water Leak Detectors Leak & Drip Alert with APP Push and Sound Alarm Smart Water Sensor with 120dB Adjustable Alarm for Home Kitchen Bathroom Basement (2 Pack Battery Included)
TECKNET$21.62394 rev
5 Pack Water Leak Alarm Detector 120dB Loud Alert Water Sensor IP66 Waterproof Sensitive Leak and Drip Alert Easy Installation for Home Basement Flood Prevention Bathroom Sink Laundry
RUIKORING$29.80437 rev
GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm 3 Pack
GoveeLife$39.922,327 rev
Trending
90-day click momentumBLIZONTE Water Leak Detector 3 Pack 5-Year Battery Life Water Alarm with Low Battery Warning 100dB Loud Sound and Self-Test Function IP66 Waterproof for Home Basement Kitchen(Not Support Wi-Fi)
Blizonte$18.044.8★
Zircon Leak Alert Electronic Water Leak Detector & Flood Sensor Alarm with 90dB Audio Dual Leak Alarms 1 Pack White
Zircon$16.694.7★
GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm 4 Pack
GoveeLife$50.314.4★
GoveeLife Upgraded Water Leak Detector with 105dB Adjustable Alarm 5 Pack
GoveeLife$42.334.6★
Flood Buzz Small Water Leak Detectors for Homes & Businesses - 6-Pack
Flood Buzz$42.774.5★
What buyers say about water alarm
What buyers praise and complain about, mined from review topics.What buyers love
“Easy set up”
“Great product and excellent seller”
“Amazing value”
“As advertised”
“Though I haven't had any leaks”
“Ease of use”
“Great protection against water leaks in various places in my home”
“The water sensors themselves work really well”
“Worked well for my project”
“Easy to connect”
What buyers complain about
“LOUD”
“Water leak”
“doesnt stay connected all the time”
“Poor Battery Life”
“Not easy to set up”
“alarm not loud enough”
“A signal water is detected”
“Poor instructions”
“Turns out the alarm won't stay off”
“Non compatible”
Top return reasons
Common questions
- Is water alarm profitable to sell on Amazon United States?
- The niche generates $945K/yr across 21 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -6.1%. Flapen's verdict: Worth a look (55/100).
- How competitive is the water alarm niche?
- 13 brands and 47 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 77% of demand.
- What do buyers complain about in water alarm?
- Top complaints mined from reviews: Noise Level, Leak-Proof, Connectivity-Overall. The return rate is 2.5%.
- When does demand for water alarm peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the water alarm niche?
- Listings span $10.15–$59.48; the average listing price is $30.86 (sweet spot $15–$100). The average incumbent carries 1,780 reviews — the moat a new listing must climb.