Co2 Monitor
MaybeAn estimated 0.6% of orders come back. But demand is soft, at -31.3% this quarter, so Co2 Monitor is a Maybe.
- Flapen Score
- 50 / 100Top 43% of 2,225 DIY & Tools niches · +1 vs the category median of 4950
- Market size
- £86K/yr107K searches / yr
- 90-day growth
- -31.3%search demand this quarter
- Competition
- 62%top-5 click share · 15 brands · 32 sellers
Flapen Score
Co2 Monitor against its category
The dotted line is the DIY & Tools average. Past it, Co2 Monitor is stronger. Inside it, weaker.
Market
The Co2 Monitor market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Co2 Monitor 107K times last year and spent an estimated £86K. The top 5 brands take 66% of clicks. Demand peaks in Oct–Nov–Dec. Flapen scores it 50 out of 100, a Maybe.
01 · Demand
An estimated 3.7% of those searches ended in a purchase.
Shoppers searched for this 107K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 3.7% of those searches ended in a purchase. Searches in the last 90 days moved -31.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £86K a year.
- Searches, last 12 months
- 107K
- Growth, 90 days vs prior 90
- -31.3%
- Conversion, latest week
- 3.7%
- Market size, estimated
- £86Ka year
- Peak month
- November3.1× the quietest month
- Top search term
- co2 monitor48K searches a year
02 · Price
A sale here is worth £21.55.
Listings sell for £21.55 on average, from £7.58 to £55.63. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At £21.55 that is £5K to £11K a year per listing.
- Average price
- £21.55inside the $15 to $100 sweet spot
- Price range
- £7.58–£55.63
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- £5K–£11K
- Returns
- 0.6%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads and reviews.
100% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 12.4% of listings are out of stock. The average listing ranks #15 within Safety & Security. It carries 2,944 reviews at 4.14 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 95%
- Out of stock, average day
- 12.4%
- Average rank
- #15in Safety & Security
- Average rating
- 4.14 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 2,944per listing
- Listings tracked
- 19
04 · Newcomers
2 of last year's 8 launches cleared the first-year sales bar.
8 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 29 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 8
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 29 months
Products
Top Co2 Monitor products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
SwitchBot CO2 detector with Built-in Hygrometer Temperature Humidity Monitor with carbon dioxide monitor Bluetooth CO2 Monitor 2-Year Data Storage SwitchBot Hub Required for WiFi Function
- Price
- £44.88
- Rating
- 4.5/5
- Reviews
- 1,113
- Age
- 1y ago

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
- Price
- £11.94
- Rating
- 4.7/5
- Reviews
- 9,145
- Age
- 2y ago

Air Quality Monitor Indoor Carbon Dioxide Monitor with LCD Display Carbon Dioxide Detector CO2 Monitor 5 In 1 Air Pollution Tester for Home Kitchen Office Car
- Price
- £14.43
- Rating
- 3.4/5
- Reviews
- 13
- Age
- 11mo ago

Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home
- Price
- £11.08
- Rating
- 4.6/5
- Reviews
- 33,828
- Age
- 6y ago

Temtop CO2 Monitor Indoor Air Quality Monitor Portable Carbon Dioxide Detector CO2 Temperature Humidity Meter for Home Office School
- Price
- £43.21
- Rating
- 4.4/5
- Reviews
- 766
- Age
- 2y ago
Trending
estimated 90-day click momentum
CO2 Monitor Detector focombance 5 in 1 CO2 Detector Alarm Carbon Dioxide Detector Indoor Air Quality Monitor Temperature Humidity SensMonitor LCD Display Home Office Gym Car Multi
- Price
- £15.53
- Rating
- 3.0/5
- Reviews
- 8
- Age
- 2mo ago

FUMIXTEX Carbon Monoxide Detector with LCD Display CO Alarms Replaceable Battery Powered 10 Year Sensor Life Portable CO Detectors for Travel 1 PCS
- Price
- £10.31
- Rating
- 4.6/5
- Reviews
- 55
- Age
- 7mo ago

CO2 Monitor Detector
- Price
- £14.94
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 5mo ago

CO2 Monitor
- Price
- £14.94
- Rating
- 3.5/5
- Reviews
- 2
- Age
- 3mo ago

SONOFF AirGuard CO2 Smart Indoor Air Quality Monitor Matter Compatible 2.4GHz WiFi Carbon Dioxide Detector for CO2/Temp/Humidity Real-Time Display & Alarm for Bedroom Nusery room
- Price
- £36.12
- Rating
- 4.2/5
- Reviews
- 135
- Age
- 8mo ago
Newest
by launch date
CO2 Monitor Detector focombance 5 in 1 CO2 Detector Alarm Carbon Dioxide Detector Indoor Air Quality Monitor Temperature Humidity SensMonitor LCD Display Home Office Gym Car Multi
- Price
- £15.53
- Rating
- 3.0/5
- Reviews
- 8
- Age
- 2mo ago

CO2 Monitor
- Price
- £14.94
- Rating
- 3.5/5
- Reviews
- 2
- Age
- 3mo ago

CO2 Monitor Detector
- Price
- £14.94
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 5mo ago

FUMIXTEX Carbon Monoxide Detector with LCD Display CO Alarms Replaceable Battery Powered 10 Year Sensor Life Portable CO Detectors for Travel 1 PCS
- Price
- £10.31
- Rating
- 4.6/5
- Reviews
- 55
- Age
- 7mo ago

SONOFF AirGuard CO2 Smart Indoor Air Quality Monitor Matter Compatible 2.4GHz WiFi Carbon Dioxide Detector for CO2/Temp/Humidity Real-Time Display & Alarm for Bedroom Nusery room
- Price
- £36.12
- Rating
- 4.2/5
- Reviews
- 135
- Age
- 8mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 62% of clicks. Leaders hold, but buyers still shop past them.
Brands
15 falling
Sellers
32
Est. top-5 brand share
66%
Top 20: 100%
Est. top-5 click share
62%
Top 20: 100%
Open market
26%
- SwitchBot23%
- Fireangel14%
- HISUEKIG12%
- focombance9%
- Kidde8%
- Temtop8%
Demand
Co2 Monitor search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 3.1×
Search terms
Top Co2 Monitor search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- co2 monitor48K/yr
- carbon dioxide detector24K/yr
- carbon dioxide monitor13K/yr
- co2 meter6K/yr
- co2 sensor4K/yr
- co2 detectors3K/yr
- c02 monitor4K/yr
- co2 monitor for home4K/yr
- carbon dioxide2K/yr
Reviews and returns
What reviews say buyers love and hate about Co2 Monitor
We read the reviews and the return reasons for every product selling here.
“then constantly said low battery even when the batteries were changed to new ones”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Co2 Monitor questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data








