flood sensor
Skip itA small market ($16K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$31.15avg listing price — sweet spot $15–$100
Price range
Great$10.15–$58.21cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.5%return rate — above 5% kills the launch gate
Review moat
Okay2,391.15avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Conversion
Okay2.3%search→purchase rate — share of searches ending in a sale
Competition
Bad70%top-5 click share — a locked-up shelf
Growth
Bad-1.2%90-day search growth — must beat 0% to launch
Market size
Bad$16K$16K/yr · 22K searches
According to Flapen's Amazon United States niche tracking, flood sensor is a $16K/yr Amazon United States market (22K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Jul. Verdict: Skip it — 35/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
flood sensor market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $31K–$39K
- units × avg price
- Conversion rate
- 2.3%
- Avg BSR
- #13
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 65 months
- Avg seller age
- 161 days
Competition & brand share
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 falling
Sellers
41
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
11%
- GoveeLife46%
- METAK19%
- BASEMENT WATCHDOG7%
- Geevon7%
- Flood Buzz5%
- RUIKORING5%
- Open — no brand owns it (3 brands, 11%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -1.2% search growth over the last 90 days.Peak months: Jul · busiest ÷ quietest = 1.6×
Top flood sensor search terms
- flood sensor12K/yr
- flood alarm5K/yr
- flood detector4K/yr
- flood detector and water leak alarm2K/yr
- flood alarm for basement254/yr
Top flood sensor 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 13 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
GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm 5 Pack
GoveeLife$58.214.4★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
Geevon 2 Pack Water Leak Detectors 100dB Water Sensor Alarms Flood Detector for Basements Bathrooms Laundry Rooms Kitchens Garages and Attics Water Alarms Battery-Operated (Battery Included)
Geevon$12.544.5★2,977 rev
Newest
by launch date
Shelly Flood Gen4 WiFi Bluetooth Zigbee Matter Smart Flood Sensor with Leak Sensor Cable Alexa SmartThings Google Home Apple HomeKit Compatible Flood and Rain Detection Easy to Use IP44
Shelly$35.38209 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
GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm 5 Pack
GoveeLife$58.212,327 rev
GoveeLife Upgraded Water Leak Detector with 105dB Adjustable Alarm 5 Pack
GoveeLife$42.33362 rev
Trending
90-day click momentumShelly Flood Gen4 WiFi Bluetooth Zigbee Matter Smart Flood Sensor with Leak Sensor Cable Alexa SmartThings Google Home Apple HomeKit Compatible Flood and Rain Detection Easy to Use IP44
Shelly$35.384.3★
GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm 5 Pack
GoveeLife$58.214.4★
Topvico Water Leak Sensor Detector Flood Alarm for Basement RV Moisture 120dB Work Alone Battery Operated 3 Packs
Topvico$14.954.4★
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★
GoveeLife Upgraded Water Leak Detector with 105dB Adjustable Alarm 5 Pack
GoveeLife$42.334.6★
What buyers say about flood sensor
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to assemble and install”
“Reliable Product”
“Amazing value”
“As advertised”
“Though I haven't had any leaks”
“Ease of use”
“Protect yourself and your home from water damage”
“connect to WiFi”
“Works Great”
“These sensors are incredibly reliable”
What buyers complain about
“Emits a constant high-pitched noise”
“water started leaking”
“Very hard to connect”
“Poor Battery Life”
“alarm not loud enough”
“Not easy to set up”
“A signal water is detected”
“Non compatible”
“Turns out the alarm won't stay off”
“Complete garbage”
Top return reasons
Common questions
- Is flood sensor profitable to sell on Amazon United States?
- The niche generates $16K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -1.2%. Flapen's verdict: Skip it (35/100).
- How competitive is the flood sensor niche?
- 9 brands and 41 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in flood sensor?
- Top complaints mined from reviews: Noise Level, Leak-Proof, Connectivity-Overall. The return rate is 2.5%.
- When does demand for flood sensor peak?
- Demand peaks in Jul; the busiest month runs 1.6× the quietest.
- What does it cost to enter the flood sensor niche?
- Listings span $10.15–$58.21; the average listing price is $31.15 (sweet spot $15–$100). The average incumbent carries 2,391 reviews — the moat a new listing must climb.