---
title: "Carbon Monoxide Detectors — $18.8M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/carbon-monoxide-detectors"
last_updated: "2026-08-08T19:59:08.902Z"
locale: en
meta:
description: "Niche score 46/100 · $18.8M/yr market · 8.3M searches/yr · $34.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $18.8M/yr market · 8.3M searches/yr · $34.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Carbon Monoxide Detectors — $18.8M/yr Amazon US Niche (2026) - Flapen"
---
# **carbon monoxide detectors**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 100Growth 7Conversion 72Competition 25Returns 71Price range 95Avg price 95Brand share 0Review moat 20Quality gap 19
**Market size**
**Incredible****$18.8M**
$18.8M/yr · 8.3M searches
**Avg price**
**Incredible****$34.29**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$20.30–$67.36**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****6.6%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Good****2.2%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****70%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****12,722.71**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-35.8%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, carbon monoxide detectors is a $18.8M/yr Amazon United States market (8.3M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Mar. Verdict: Skip it — 46/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **carbon monoxide detectors market data**
- **Units sold / yr**
- **800K–1.0M**
- avg 60,000–80,000/product
- **Revenue / yr**
- **$27.4M–$34.3M**
- units × avg price
- **Conversion rate**
- **6.6%**
- **Avg BSR**
- **#5**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **79%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **141 days**
## **Competition & brand share**
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**3 **▲rising
**Sellers**
**52**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**0%**
- Kidde61% - First Alert34% - SITERWELL4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -35.8% search growth over the last 90 days.
450K350KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Mar · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/carbon-monoxide-detectors/trend)
## **Top carbon monoxide detectors search terms**
- **carbon monoxide detectors**4.2M/yr-36.4%7.2% conv. - **carbon monoxide detectors plug in**1.1M/yr-44.0%10.1% conv. - **co2 detector**614K/yr-36.5%5.3% conv. - **carbon monoxide detector**460K/yr-32.2%5.3% conv. - **portable carbon monoxide detector**280K/yr-19.9%2.8% conv. - **co detector**350K/yr-46.1%4.4% conv. - **travel carbon monoxide detector**153K/yr-26.6%3.7% conv. - **plug in carbon monoxide detector**167K/yr-30.9%9.2% conv. - **carbon monoxide detectors portable**156K/yr-28.4%2.1% conv. - **detector de monxido de carbono**54K/yr+79.3%1.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/carbon-monoxide-detectors/search-terms)
## **Top carbon monoxide detectors 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%$1.9M20%$3.8M30%$5.6M40%$7.5M1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Kidde Carbon Monoxide Detector AA Battery Powered Portable for Travel or Home 85 dB Alarm LED Status Indicators 3rd Edition**Kidde**$22.91**4.8★1,663 rev](https://www.amazon.com/dp/B0DT1MGCKK) [2**First Alert Plug in Carbon Monoxide Alarm**First Alert**$24.05**4.7★23,005 rev](https://www.amazon.com/dp/B000ND74XA) [3**Kidde Carbon Monoxide Detector Plug-in Carbon Monoxide Detector with AA Battery Backup 85 dB Alarm LED Status Light Indicators 3rd Edition**Kidde**$31.64**4.8★1,208 rev](https://www.amazon.com/dp/B0DT1MYBNV) [4**FIRST ALERT Carbon Monoxide Detector No Outlet Required Battery Operated CO400 White 2 Count (Pack of 1)**First Alert**$34.68**4.6★23,091 rev](https://www.amazon.com/dp/B002GP7CZS) [5**Kidde Carbon Monoxide Detector AA Battery-Powered COB**Kidde**$25.64**4.7★129 rev](https://www.amazon.com/dp/B0G1CR88J9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kidde Carbon Monoxide Detector AA Battery-Powered COB**Kidde**$25.64**129 rev5mo ago](https://www.amazon.com/dp/B0G1CR88J9) [**Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COPD**Kidde**$44.23**27,258 rev5mo ago](https://www.amazon.com/dp/B0G1C86M5S) [**Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COP**Kidde**$34.76**1,208 rev5mo ago](https://www.amazon.com/dp/B0G1CPTKNQ) [**Kidde Carbon Monoxide Detector AA Battery Powered Portable for Travel or Home 85 dB Alarm LED Status Indicators 3rd Edition**Kidde**$22.91**1,663 rev1y ago](https://www.amazon.com/dp/B0DT1MGCKK) [**Kidde Carbon Monoxide Detector Plug-in Carbon Monoxide Detector with AA Battery Backup 85 dB Alarm LED Status Light Indicators 3rd Edition**Kidde**$31.64**1,208 rev1y ago](https://www.amazon.com/dp/B0DT1MYBNV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kidde Carbon Monoxide Detector AA Battery-Powered COB**Kidde**$25.64**4.7★**▲ 206%**](https://www.amazon.com/dp/B0G1CR88J9) [**Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COP**Kidde**$34.76**4.8★**▲ 196%**](https://www.amazon.com/dp/B0G1CPTKNQ) [**Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COPD**Kidde**$44.23**4.7★**▲ 175%**](https://www.amazon.com/dp/B0G1C86M5S) [**First Alert Plug in Carbon Monoxide Alarm**First Alert**$67.36**4.7★**▲ 115%**](https://www.amazon.com/dp/B014KEPQLE) [**FIRST ALERT Carbon Monoxide Detector No Outlet Required Battery Operated CO400 White 2 Count (Pack of 1)**First Alert**$34.68**4.6★**▲ 69%**](https://www.amazon.com/dp/B002GP7CZS)
**~~View all trending →~~**
## **What buyers say about carbon monoxide detectors**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**15%
*“Easy install”*
**Quality-Overall**14%
*“Excellent Product”*
**Value For Money**11%
*“Great deal”*
**Advertised Vs Actual Product**10%
*“As described”*
**Ease Of Use**7%
*“Easy peasy”*
**Battery Life**5%
*“Batteries last a long time”*
**Efficiency**5%
*“effective”*
**Sensor**3%
*“Overall, this is a straightforward and user-friendly detector with useful features and added convenience”*
**Security**3%
*“Security is important”*
**Size-Overall**3%
*“Fit perfect in my camper”*
### **What buyers complain about **
**Battery Life**16%
*“Battery dead”*
**Durability**11%
*“Not durable”*
**Functionality-Overall**9%
*“Does not work correctly”*
**Noise Level**8%
*“it was very loud”*
**Quality-Overall**4%
*“VERY POOR quality control”*
**Size-Overall**3%
*“Small”*
**Product Condition**3%
*“Very old product”*
**Measurement/Reading Accuracy**3%
*“likely none of us have calibration equipment at home to determine this”*
**Leak-Proof**2%
*“I was curious if there was a leak in my apartment”*
**Defective Material/Parts**2%
*“One of the two didnt work”*
### **Top return reasons **
**Alarm/Timer Accuracy**13%
**Functionality-Overall**13%
**Size-Overall**11%
**Advertised Vs Actual Product**10%
**Value For Money**10%
**Socket/Port/Plug**7%
**Defective Material/Parts**6%
**Product Condition**4%
**Compatibility-Overall**4%
**Battery Life**3%
## **Common questions**
- **Is carbon monoxide detectors profitable to sell on Amazon United States?**
- The niche generates $18.8M/yr across 14 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -35.8%. Flapen's verdict: Skip it (46/100).
- **How competitive is the carbon monoxide detectors niche?**
- 3 brands and 52 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in carbon monoxide detectors?**
- Top complaints mined from reviews: Battery Life, Durability, Functionality-Overall. The return rate is 2.2%.
- **When does demand for carbon monoxide detectors peak?**
- Demand peaks in Jan–Mar; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the carbon monoxide detectors niche?**
- Listings span $20.30–$67.36; the average listing price is $34.29 (sweet spot $15–$100). The average incumbent carries 12,723 reviews — the moat a new listing must climb.
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