carbon monoxide detector
Worth a lookShows searches that convert (16.6% search→purchase), but soft demand (-23.6% this quarter) keeps it on the watch list.
Conversion
Incredible16.6%search→purchase rate — share of searches ending in a sale
Market size
Incredible£5.0M£5.0M/yr · 2.4M searches
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Avg price
Good£12.51avg listing price — sweet spot $15–$100
Brand share
Okay81%top-5 brand share — brands hold most of the demand
Price range
Okay£6.75–£20.01cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad4,426.14avg incumbent reviews — the moat a new listing must climb
Competition
Bad72%top-5 click share — a locked-up shelf
Growth
Bad-23.6%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, carbon monoxide detector is a £5.0M/yr Amazon United Kingdom market (2.4M searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Jan–Oct–Nov. Verdict: Worth a look — 52/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
carbon monoxide detector market data
- Units sold / yr
- 300K–400K
- avg 20,000–25,000/product
- Revenue / yr
- £3.8M–£5.0M
- units × avg price
- Conversion rate
- 16.6%
- Avg BSR
- #10
- Page quality
- 0%
- Prime
- 86%
- Sponsored
- 100%
- Out of stock
- 6.3%
- Avg brand age
- 42 months
- Avg seller age
- 173 days
Competition & brand share
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 rising
Sellers
29
Top-5 brand share
81%
Top 20: 100%
Top-5 click share
72%
Top 20: 100%
Open market
13%
- Fireangel36%
- Kidde20%
- Safeliveo9%
- XINDUM8%
- X-Sense8%
- Fenary6%
- Open — no brand owns it (3 brands, 13%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -23.6% search growth over the last 90 days.Peak months: Jan, Oct, Nov · busiest ÷ quietest = 1.9×
Top carbon monoxide detector search terms
- carbon monoxide detector1.3M/yr
- carbon monoxide alarm391K/yr
- carbon monoxide alarms for home146K/yr
- co2 detector110K/yr
- fire angel carbon monoxide alarm56K/yr
- carbon monoxide detectors52K/yr
- fireangel carbon monoxide detector23K/yr
- co2 monitor48K/yr
- co alarm38K/yr
- co2 alarm41K/yr
Top 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 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button Single
Fireangel£11.944.7★9,145 rev
Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home
Kidde£11.084.6★33,828 rev
Carbon Monoxide Detector with Digital Display CO Alarm with Replaceable Battery - 10 Year Sensor Life Portable Carbon Monoxide Alarm for Home with Memory Alarm Function 1 Pack(White).
Safeliveo£11.034.7★610 rev
X-Sense Carbon Monoxide Detector Replaceable Battery Powered CO Alarm with Digital Display Portable Carbon Monoxide Alarm for Home with CO Peak Value Memory XC0C-SR 1-Pack
X-Sense£10.804.7★4,929 rev
Carbon Monoxide Detector Carbon Monoxide Alarm with PPM Display CO Alarm with Test Button Battery Powered CO Detector Monitor with 85 dB Audible for Home and Holiday(Batteries NOT Included)
Fenary£7.944.5★794 rev
Newest
by launch date
FUMIXTEX Carbon Monoxide Detector with LCD Display CO Alarms Replaceable Battery Powered 10 Year Sensor Life Portable CO Detectors for Travel 1 PCS
FUMIXTEX£10.3155 rev
Carbon Monoxide Detector with Digital Display CO Alarm with Replaceable Battery - 10 Year Sensor Life Portable Carbon Monoxide Alarm for Home with Memory Alarm Function 1 Pack(White).
Safeliveo£11.03610 rev
FireAngel FA6812 Digital Carbon Monoxide Detector with LCD Screen 10-Year CO Alarm Sensor Portable Carbon Monoxide Alarm for Home Travel Caravan
Fireangel£18.561,727 rev
EIBEST Carbon Monoxide Detector Carbon Monoxide Alarm CO Detector With LED display And 85 Decibel Sound And Light Alarm
EiBEST£6.75251 rev
Carbon Monoxide Detector Carbon Monoxide Alarm with PPM Display CO Alarm with Test Button Battery Powered CO Detector Monitor with 85 dB Audible for Home and Holiday(Batteries NOT Included)
Fenary£7.94794 rev
Trending
90-day click momentumFUMIXTEX Carbon Monoxide Detector with LCD Display CO Alarms Replaceable Battery Powered 10 Year Sensor Life Portable CO Detectors for Travel 1 PCS
FUMIXTEX£10.314.6★
Carbon Monoxide Detector with LCD Digital Display CE Certified CO Alarm with Sealed in 10 Year Battery Standalone Audible CO Detector for Home White 1 Pack
XINDUM£13.884.6★
Carbon Monoxide Detector with Digital Display CO Alarm with Replaceable Battery - 10 Year Sensor Life Portable Carbon Monoxide Alarm for Home with Memory Alarm Function 1 Pack(White).
Safeliveo£11.034.7★
Carbon Monoxide Detector with LCD Digital Display CE Certified CO Alarm with Sealed in 10 Year Battery Standalone Audible CO Detector for Home Black 1 Pack
XINDUM£14.414.6★
FireAngel FA3820 Carbon Monoxide Detector 10-Year Life Sealed Battery Carbon Monoxide Alarm for Home and Travel Portable CO Alarm Monitor 1-Pack
Fireangel£18.734.6★
What buyers say about carbon monoxide detector
What buyers praise and complain about, mined from review topics.What buyers love
“Good value for money”
“Good quality device”
“As advertised”
“Easily installed”
“Easy to read”
“Great Gaget neat in size”
“Compact design”
“So far works well”
“Has a long life battery”
“Easy safety”
What buyers complain about
“stopped working after 1.5 years of barely being used”
“battery only lasted 10 weeks”
“think the unit isn't working”
“Very loud”
“Poor quality control”
“Neat device, poor documentation with incorrect information”
“not easy to read at all”
“the backplate did not fit the unit”
“Installation is a doddle”
“Alarm not working”
Top return reasons
Common questions
- Is carbon monoxide detector profitable to sell on Amazon United Kingdom?
- The niche generates £5.0M/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -23.6%. Flapen's verdict: Worth a look (52/100).
- How competitive is the carbon monoxide detector niche?
- 9 brands and 29 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 81% of demand.
- What do buyers complain about in carbon monoxide detector?
- Top complaints mined from reviews: Durability, Battery Life, Functionality-Overall. The return rate is 0.5%.
- When does demand for carbon monoxide detector peak?
- Demand peaks in Jan–Oct–Nov; the busiest month runs 1.9× the quietest.
- What does it cost to enter the carbon monoxide detector niche?
- Listings span £6.75–£20.01; the average listing price is £12.51 (sweet spot $15–$100). The average incumbent carries 4,426 reviews — the moat a new listing must climb.