Is portable carbon monoxide detector profitable to sell on Amazon United States?

The niche generates $901K/yr across 13 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -22.1%. Flapen's verdict: Skip it (44/100).

How competitive is the portable carbon monoxide detector niche?

7 brands and 37 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in portable carbon monoxide detector?

Top complaints mined from reviews: Battery Life, Durability, Noise Level. The return rate is 1.9%.

When does demand for portable carbon monoxide detector peak?

Demand peaks in Apr; the busiest month runs 11.1× the quietest.

What does it cost to enter the portable carbon monoxide detector niche?

Listings span $20.99–$57.62; the average listing price is $30.61 (sweet spot $15–$100). The average incumbent carries 7,027 reviews — the moat a new listing must climb.

portable carbon monoxide detector

Skip it

Soft demand (-22.1% this quarter) — this niche doesn't clear our bar today.

Avg price

Incredible$30.61

avg listing price — sweet spot $15–$100

Price range

Incredible$20.99–$57.62

cheapest to priciest tracked listing — scored on the share inside $15–$100

Returns

Great1.9%

return rate — above 5% kills the launch gate

Market size

Great$901K

$901K/yr · 914K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Conversion

Okay3.2%

search→purchase rate — share of searches ending in a sale

Review moat

Bad7,026.92

avg incumbent reviews — the moat a new listing must climb

Competition

Bad79%

top-5 click share — a locked-up shelf

Growth

Bad-22.1%

90-day search growth — must beat 0% to launch

Brand share

Bad94%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, portable carbon monoxide detector is a $901K/yr Amazon United States market (914K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Apr. Verdict: Skip it — 44/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

portable carbon monoxide detector market data

Units sold / yr: 50K–60K; avg 4,000–5,000/product
Revenue / yr: $1.5M–$1.8M; units × avg price
Conversion rate: 3.2%
Avg BSR: #12
Page quality: 0%
Prime: 100%
Sponsored: 92%
Out of stock: 5.6%
Avg brand age: 31 months
Avg seller age: 149 days

Competition & brand share

The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

79%

Top 20: 100%

Open market

Kidde78%
TOPTES5%
First Alert4%
Dienmern4%
SITERWELL3%
INKBIRDPLUS3%
Open — no brand owns it (1 brand, 3%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -22.1% search growth over the last 90 days.

Peak months: Apr · busiest ÷ quietest = 11.1×

Open Trend

Top portable carbon monoxide detector search terms

portable carbon monoxide detector280K/yr -19.9%3.4% conv.
travel carbon monoxide detector153K/yr -26.6%4.5% conv.
carbon monoxide detectors portable156K/yr -28.4%2.8% conv.
portable carbon monoxide detector for travel66K/yr -13.5%3.4% conv.
carbon monoxide detectors travel27K/yr +20.2%4.1% conv.
portable carbon monoxide detectors for travel20K/yr +58.9%2.2% conv.
portable co detector28K/yr -28.3%2.1% conv.
portable co2 detector for travel30K/yr -43.1%3.6% conv.
portable carbon monoxide detectors22K/yr -19.2%3.1% conv.
travel carbon monoxide detector portable11K/yr +37.3%5.1% conv.

All search terms

Top portable 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 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

Kidde Carbon Monoxide Detector AA Battery-Powered COB

Kidde$25.644.7★129 rev

Kidde Carbon Monoxide Detector AA Battery-Powered COBD

Kidde$31.304.7★19,829 rev

TOPTES CT-580 Portable Carbon Monoxide Detector Rechargeable CO Detector with Vibration Visual & Audible Alarms 0-1000PPM TFT Color Display for Home Camping Travel Industrial & Professional Use

TOPTES$57.624.5★650 rev

5-in-1 CO2 Carbon Dioxide Detector Dienmern Portable Air Quality Monitor Indoor 1600mAh Powerful Battery CO2 Monitor for CO2/Temp/Humidity LED Display CO2 Detector for Travel/Office/Home/Grow Tents

Dienmern$23.353.0★30 rev

Newest

by launch date

Kidde Carbon Monoxide Detector AA Battery-Powered COBD

Kidde$31.3019,829 rev

4mo ago

5-in-1 CO2 Carbon Dioxide Detector Dienmern Portable Air Quality Monitor Indoor 1600mAh Powerful Battery CO2 Monitor for CO2/Temp/Humidity LED Display CO2 Detector for Travel/Office/Home/Grow Tents

Dienmern$23.3530 rev

4mo ago

Kidde Carbon Monoxide Detector AA Battery-Powered COB

Kidde$25.64129 rev

5mo ago

Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COP

Kidde$34.761,208 rev

5mo ago

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

1y ago

What buyers say about portable carbon monoxide detector

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

What buyers love

Assembly/Installation15%

“Easy install”

Quality-Overall13%

“The build quality feels solid and durable”

Value For Money10%

“Excellent value”

Advertised Vs Actual Product10%

“As described”

Ease Of Use8%

“Easy peasy”

Battery Life4%

“The battery lasts for literal days”

Efficiency4%

“Works great”

Size-Overall3%

“Fit perfect in my camper”

Security3%

“keep your house safe”

Sensor3%

“this should be a good sensor”

What buyers complain about

Battery Life15%

“Battery didn't last”

Durability11%

“Failed after two years”

Noise Level9%

“Began beeping”

Functionality-Overall9%

“DOESN'T WORK OUT OF THE BOX”

Value For Money4%

“just knock a $1 off the price”

Quality-Overall4%

“VERY POOR quality control”

Measurement/Reading Accuracy4%

“was getting very clear non-zero readings”

Product Condition3%

“It was used”

Size-Overall3%

“Small”

Display-Overall2%

“No digital CO level display”

Top return reasons

Functionality-Overall14%

Value For Money12%

Advertised Vs Actual Product11%

Alarm/Timer Accuracy10%

Socket/Port/Plug8%

Size-Overall7%

Defective Material/Parts5%

Compatibility-Overall5%