gas and carbon monoxide detector
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size
Incredible$4.6M$4.6M/yr · 1.6M searches
Avg price
Incredible$42.66avg listing price — sweet spot $15–$100
Price range
Good$10.06–$124.66cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.7%search→purchase rate — share of searches ending in a sale
Returns
Good2.9%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,284.92avg incumbent reviews — the moat a new listing must climb
Competition
Bad83%top-5 click share — a locked-up shelf
Growth
Bad-27.2%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, gas and carbon monoxide detector is a $4.6M/yr Amazon United States market (1.6M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Jun–Jul. Verdict: Skip it — 44/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
gas and carbon monoxide detector market data
- Units sold / yr
- 125K–150K
- avg 12,500–15,000/product
- Revenue / yr
- $5.3M–$6.4M
- units × avg price
- Conversion rate
- 6.7%
- Avg BSR
- #19
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 85%
- Out of stock
- 0.0%
- Avg brand age
- 43 months
- Avg seller age
- 138 days
Competition & brand share
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 rising
Sellers
60
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
83%
Top 20: 100%
Open market
0%
- TOPTES53%
- Kidde34%
- First Alert6%
- KLEIN TOOLS5%
- zangang2%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -27.2% search growth over the last 90 days.Peak months: Mar, Jun, Jul · busiest ÷ quietest = 7.1×
Top gas and carbon monoxide detector search terms
- natural gas detector278K/yr
- gas leak detector303K/yr
- gas detector196K/yr
- dewlora 4-in-1 co detector78K/yr
- gas detector for home56K/yr
- propane detector73K/yr
- gas leak detector for home72K/yr
- natural gas detectors for home83K/yr
- gas detectors for home natural gas76K/yr
- propane leak detector50K/yr
Top gas and carbon monoxide detector 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
Kidde Carbon Monoxide + Explosive Gas Natural Gas & Propane Alarm Plug-in with 9V Battery Backup Digital Display 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$59.284.6★551 rev

PT199 Natural Gas Leak Detector with Audible & Visual Alarm Portable Gas Sniffer to Locate Combustible Sources Like Methane Propane for Home(Includes Battery x2)-Orange
TOPTES$21.914.6★8,510 rev

PT520A Natural Gas Detector Gas Leak Detector with 17-Inch Gooseneck Locating The Source Like Propane Methane and Butane for Home and RV (Includes Battery x3) - Orange
TOPTES$37.834.6★3,918 rev

Natural Gas Detector TopTes PT177 Gas Leak Detector with Audible & Visual Alarm Portable Gas Sniffer to Locate Combustible Leak Sources Like Methane Propane for Home (Includes Battery x2)-Orange
TOPTES$17.844.6★3,812 rev

FIRST ALERT Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display GCO1CN
First Alert$49.874.4★1,011 rev
Newest
by launch date
Kidde Carbon Monoxide & Explosive Gas Alarm Plug-in & AA Battery COPDLG
Kidde$64.8374 rev

Klein Tools ET190 Gas Leak Detector Wide Detection Range Audible and LED Alerts Slim and Lightweight
KLEIN TOOLS$32.181,888 rev

Kidde Carbon Monoxide + Explosive Gas Natural Gas & Propane Alarm Plug-in with 9V Battery Backup Digital Display 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$59.28551 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

Natural Gas Leak Detector with Audible & Visual Alarm
zangang$10.06269 rev
Trending
90-day click momentum
Kidde Carbon Monoxide & Explosive Gas Alarm Plug-in & AA Battery COPDLG
Kidde$64.834.1★

FIRST ALERT Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display GCO1CN
First Alert$49.874.4★

Kidde Carbon Monoxide + Explosive Gas Natural Gas & Propane Alarm Plug-in with 9V Battery Backup Digital Display 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$59.284.6★

Kidde Carbon Monoxide Detector AA Battery Powered Portable for Travel or Home 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$22.914.8★

Klein Tools ET190 Gas Leak Detector Wide Detection Range Audible and LED Alerts Slim and Lightweight
KLEIN TOOLS$32.184.6★
What buyers say about gas and carbon monoxide detector
What buyers praise and complain about, mined from review topics.What buyers love
“Very handy”
“As advertised”
“Fair price”
“Looks well made”
“No gas leak”
“It's easy to put together”
“Unit works fine”
“This detector works very well”
“Keeps you safe”
“The battery backup provides extra peace of mind during power outages”
What buyers complain about
“The leak was in the connection between the gas line”
“no longer works”
“could smell it”
“Easily Broken”
“battery was dead”
“Very loud”
“VERY POOR quality control”
“too expensive”
“The detector failed to beep or show any readings at all”
“very large”
Top return reasons
Common questions
- Is gas and carbon monoxide detector profitable to sell on Amazon United States?
- The niche generates $4.6M/yr across 13 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -27.2%. Flapen's verdict: Skip it (44/100).
- How competitive is the gas and carbon monoxide detector niche?
- 5 brands and 60 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in gas and carbon monoxide detector?
- Top complaints mined from reviews: Leak-Proof, Functionality-Overall, Smell. The return rate is 2.9%.
- When does demand for gas and carbon monoxide detector peak?
- Demand peaks in Mar–Jun–Jul; the busiest month runs 7.1× the quietest.
- What does it cost to enter the gas and carbon monoxide detector niche?
- Listings span $10.06–$124.66; the average listing price is $42.66 (sweet spot $15–$100). The average incumbent carries 3,285 reviews — the moat a new listing must climb.