carbon monoxide detectors/smoke alarm
Worth a lookShows a $1.6M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size
Great$1.6M$1.6M/yr · 382K searches
Avg price
Great$74.86avg listing price — sweet spot $15–$100
Competition
Great40%top-5 click share — an open shelf
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Conversion
Good5.4%search→purchase rate — share of searches ending in a sale
Review moat
Good1,248.3avg incumbent reviews — the moat a new listing must climb
Returns
Good2.8%return rate — above 5% kills the launch gate
Price range
Okay$16.54–$245.32cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-22.1%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, carbon monoxide detectors/smoke alarm is a $1.6M/yr Amazon United States market (382K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
carbon monoxide detectors/smoke alarm market data
- Units sold / yr
- 25K–30K
- avg 500–750/product
- Revenue / yr
- $1.9M–$2.2M
- units × avg price
- Conversion rate
- 5.4%
- Avg BSR
- #16
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 80%
- Out of stock
- 4.3%
- Avg brand age
- 40 months
- Avg seller age
- 139 days
Competition & brand share
Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.Brands
3 flat
Sellers
97
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
40%
Top 20: 79%
Open market
0%
- First Alert49%
- Kidde37%
- X-Sense14%
- Open — no brand owns it (0%)
Demand
Weekly Amazon search volume, last 17 weeks — -22.1% search growth over the last 90 days.Top carbon monoxide detectors/smoke alarm search terms
- kidde smart p4010dcsco-w (battery)43K/yr
- smoke and carbon monoxide detector 10 year battery40K/yr
- fire detectors and carbon monoxide for home36K/yr
- 10 year smoke and carbon monoxide detector33K/yr
- combination smoke and carbon monoxide detectors25K/yr
- carbon monoxide detectors/smoke alarm26K/yr
- fire detector and carbon monoxide detector20K/yr
- rv smoke and carbon monoxide detector14K/yr
- battery operated smoke and carbon dioxide detector13K/yr
- first alert smco21012K/yr
Top carbon monoxide detectors/smoke alarm 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
First Alert 10-Year Battery Combination Smoke & Carbon Monoxide Alarm
First Alert$39.123.8★1,608 rev
First Alert Battery Combination Smoke & Carbon Monoxide Alarm
First Alert$40.004.5★969 rev
Kidde Smoke & Carbon Monoxide Detector 10-Year Battery 30CUD10-V 1 Pack
Kidde$62.604.2★425 rev
First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm
First Alert$50.544.5★1,569 rev
X-Sense Smoke Detector Carbon Monoxide Detector Combo SC07 1-Pack
X-Sense$33.564.6★4,104 rev
Newest
by launch date
X-Sense Smoke & Carbon Monoxide Alarm SC06 1-Pack
X-Sense$36.31245 rev
X-Sense Smoke Detector Carbon Monoxide Alarm Combo XP0H-SN 1-Pack
X-Sense$35.86131 rev
Kidde Smoke & Carbon Monoxide Detector 10-Year Battery Powered Voice Alerts LED Warning Light Indicators 2 Pack
Kidde$92.60451 rev
Kidde Smoke & Carbon Monoxide Detector 10-Year Battery Powered LED Warning Light Indicators 4 Pack
Kidde$177.13530 rev
Kidde Smoke & Carbon Monoxide Detector 10-Year Battery 30CUD10 1 Pack
Kidde$49.201,136 rev
Trending
90-day click momentumX-Sense Smoke & Carbon Monoxide Alarm SC06 1-Pack
X-Sense$36.314.6★
Kidde Smoke & Carbon Monoxide Detector AA Battery Powered not wired Voice Alerts LED Warning Light Indicators
Kidde$53.554.5★
First Alert Battery Smoke Alarm
First Alert$32.894.6★
X-Sense Smoke Detector Carbon Monoxide Alarm Combo XP0H-SN 1-Pack
X-Sense$35.864.6★
First Alert Battery Combination Smoke & Carbon Monoxide Alarm
First Alert$109.684.5★
What buyers say about carbon monoxide detectors/smoke alarm
What buyers praise and complain about, mined from review topics.What buyers love
“Easy set up”
“Good price for quality of products”
“Exactly what I wanted”
“Excellent value”
“Batteries life is great”
“Does the job”
“Excellent fire alarm”
“These combination detectors are really good”
“Easy peasy”
“Fit right in the existing mount”
What buyers complain about
“DOESN'T LAST”
“Battery was dead when received”
“Not the quality I was expecting”
“Did not work”
“began incredibly irritating beeping”
“They were a little expensive”
“Defective alarm”
“Tricky to install”
“it does not fit”
“Not what advertised”
Top return reasons
Common questions
- Is carbon monoxide detectors/smoke alarm profitable to sell on Amazon United States?
- The niche generates $1.6M/yr across 40 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is -22.1%. Flapen's verdict: Worth a look (54/100).
- How competitive is the carbon monoxide detectors/smoke alarm niche?
- 3 brands and 97 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in carbon monoxide detectors/smoke alarm?
- Top complaints mined from reviews: Durability, Battery Life, Quality-Overall. The return rate is 2.8%.
- What does it cost to enter the carbon monoxide detectors/smoke alarm niche?
- Listings span $16.54–$245.32; the average listing price is $74.86 (sweet spot $15–$100). The average incumbent carries 1,248 reviews — the moat a new listing must climb.