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gas and carbon monoxide detector

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 97Growth 11Conversion 73Competition 14Returns 52Price range 74Avg price 95Brand share 0Review moat 32Quality gap 35

Market size

Incredible$4.6M

$4.6M/yr · 1.6M searches

Avg price

Incredible$42.66

avg listing price — sweet spot $15–$100

Price range

Good$10.06–$124.66

cheapest 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

Okay3,284.92

avg 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.
25K15KSpike '24Black Friday '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

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
All search terms

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.

0%10%$456K20%$911K30%$1.4M40%$1.8M101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about gas and carbon monoxide detector

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Use12%

“Very handy”

Advertised Vs Actual Product12%

“As advertised”

Value For Money11%

“Fair price”

Quality-Overall9%

“Looks well made”

Leak-Proof9%

“No gas leak”

Assembly/Installation7%

“It's easy to put together”

Efficiency7%

“Unit works fine”

Sensor4%

“This detector works very well”

Security3%

“Keeps you safe”

Battery Life2%

“The battery backup provides extra peace of mind during power outages”

What buyers complain about

Leak-Proof23%

“The leak was in the connection between the gas line”

Functionality-Overall8%

“no longer works”

Smell7%

“could smell it”

Durability7%

“Easily Broken”

Battery Life5%

“battery was dead”

Noise Level5%

“Very loud”

Quality-Overall5%

“VERY POOR quality control”

Value For Money2%

“too expensive”

Measurement/Reading Accuracy2%

“The detector failed to beep or show any readings at all”

Size-Overall2%

“very large”

Top return reasons

Functionality-Overall19%
Alarm/Timer Accuracy13%
Advertised Vs Actual Product9%
Value For Money9%
Leak-Proof8%
Size-Overall5%
Socket/Port/Plug4%
Defective Material/Parts4%
Product Condition3%
Compatibility-Overall3%

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.