carbon monoxide detectors
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size
Incredible$18.8M$18.8M/yr · 8.3M searches
Avg price
Incredible$34.29avg listing price — sweet spot $15–$100
Price range
Incredible$20.30–$67.36cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.6%search→purchase rate — share of searches ending in a sale
Returns
Good2.2%return rate — above 5% kills the launch gate
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Review moat
Bad12,722.71avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-35.8%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, carbon monoxide detectors is a $18.8M/yr Amazon United States market (8.3M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Mar. Verdict: Skip it — 46/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
carbon monoxide detectors market data
- Units sold / yr
- 800K–1.0M
- avg 60,000–80,000/product
- Revenue / yr
- $27.4M–$34.3M
- units × avg price
- Conversion rate
- 6.6%
- Avg BSR
- #5
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 79%
- Out of stock
- 2.6%
- Avg brand age
- 39 months
- Avg seller age
- 141 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
3 rising
Sellers
52
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
0%
- Kidde61%
- First Alert34%
- SITERWELL4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -35.8% search growth over the last 90 days.Peak months: Jan, Mar · busiest ÷ quietest = 2.6×
Top carbon monoxide detectors search terms
- carbon monoxide detectors4.2M/yr
- carbon monoxide detectors plug in1.1M/yr
- co2 detector614K/yr
- carbon monoxide detector460K/yr
- portable carbon monoxide detector280K/yr
- co detector350K/yr
- travel carbon monoxide detector153K/yr
- plug in carbon monoxide detector167K/yr
- carbon monoxide detectors portable156K/yr
- detector de monxido de carbono54K/yr
Top carbon monoxide detectors 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 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Kidde Carbon Monoxide Detector AA Battery Powered Portable for Travel or Home 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$22.914.8★1,663 rev
First Alert Plug in Carbon Monoxide Alarm
First Alert$24.054.7★23,005 rev
Kidde Carbon Monoxide Detector Plug-in Carbon Monoxide Detector with AA Battery Backup 85 dB Alarm LED Status Light Indicators 3rd Edition
Kidde$31.644.8★1,208 rev
FIRST ALERT Carbon Monoxide Detector No Outlet Required Battery Operated CO400 White 2 Count (Pack of 1)
First Alert$34.684.6★23,091 rev
Kidde Carbon Monoxide Detector AA Battery-Powered COB
Kidde$25.644.7★129 rev
Newest
by launch dateKidde Carbon Monoxide Detector AA Battery-Powered COB
Kidde$25.64129 rev
Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COPD
Kidde$44.2327,258 rev
Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COP
Kidde$34.761,208 rev
Kidde Carbon Monoxide Detector AA Battery Powered Portable for Travel or Home 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$22.911,663 rev
Kidde Carbon Monoxide Detector Plug-in Carbon Monoxide Detector with AA Battery Backup 85 dB Alarm LED Status Light Indicators 3rd Edition
Kidde$31.641,208 rev
Trending
90-day click momentumKidde Carbon Monoxide Detector AA Battery-Powered COB
Kidde$25.644.7★
Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COP
Kidde$34.764.8★
Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COPD
Kidde$44.234.7★
First Alert Plug in Carbon Monoxide Alarm
First Alert$67.364.7★
FIRST ALERT Carbon Monoxide Detector No Outlet Required Battery Operated CO400 White 2 Count (Pack of 1)
First Alert$34.684.6★
What buyers say about carbon monoxide detectors
What buyers praise and complain about, mined from review topics.What buyers love
“Easy install”
“Excellent Product”
“Great deal”
“As described”
“Easy peasy”
“Batteries last a long time”
“effective”
“Overall, this is a straightforward and user-friendly detector with useful features and added convenience”
“Security is important”
“Fit perfect in my camper”
What buyers complain about
“Battery dead”
“Not durable”
“Does not work correctly”
“it was very loud”
“VERY POOR quality control”
“Small”
“Very old product”
“likely none of us have calibration equipment at home to determine this”
“I was curious if there was a leak in my apartment”
“One of the two didnt work”
Top return reasons
Common questions
- Is carbon monoxide detectors profitable to sell on Amazon United States?
- The niche generates $18.8M/yr across 14 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -35.8%. Flapen's verdict: Skip it (46/100).
- How competitive is the carbon monoxide detectors niche?
- 3 brands and 52 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in carbon monoxide detectors?
- Top complaints mined from reviews: Battery Life, Durability, Functionality-Overall. The return rate is 2.2%.
- When does demand for carbon monoxide detectors peak?
- Demand peaks in Jan–Mar; the busiest month runs 2.6× the quietest.
- What does it cost to enter the carbon monoxide detectors niche?
- Listings span $20.30–$67.36; the average listing price is $34.29 (sweet spot $15–$100). The average incumbent carries 12,723 reviews — the moat a new listing must climb.