siterwell smoke and carbon monoxide detector
Worth a lookShows a thin review moat (327 avg reviews), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Review moat
Great327.36avg incumbent reviews — the moat a new listing must climb
Returns
Great1.5%return rate — above 5% kills the launch gate
Avg price
Great$80.68avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Conversion
Good6.8%search→purchase rate — share of searches ending in a sale
Competition
Good42%top-5 click share — leaders hold, buyers still browse
Price range
Okay$14.92–$215.51cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$80K$80K/yr · 15K searches
Growth
Bad-16.0%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, siterwell smoke and carbon monoxide detector is a $80K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
siterwell smoke and carbon monoxide detector market data
- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $40K–$61K
- units × avg price
- Conversion rate
- 6.8%
- Avg BSR
- #48
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 18.1%
- Avg brand age
- 31 months
- Avg seller age
- 157 days
Competition & brand share
The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.Brands
3 rising
Sellers
24
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
42%
Top 20: 91%
Open market
0%
- SITERWELL98%
- First Alert1%
- Kidde1%
Demand
Weekly Amazon search volume, last 30 weeks — -16.0% search growth over the last 90 days.Top siterwell smoke and carbon monoxide detector search terms
- siterwell smoke and carbon monoxide detector8K/yr
- siterwell gs886f3K/yr
- siterwell3K/yr
Top siterwell smoke and 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SITERWELL Smoke Detector Combo Smoke & Carbon Monoxide Alarm 10-Year Battery CO Detectors Smoke and Carbon Monoxide Detector with Bilingual Voice Alerts Reduced Nuisance Alarms 1 Pack
SITERWELL$42.054.3★75 rev
SITERWELL Hardwired Interconnected Smoke Detector Carbon Monoxide Detector Combo with 2 AA Batteries Back Up 2 in 1 Smoke and CO Detector with Voice Alert Smoke and CO Alarm with Self-Check 1 Pack
SITERWELL$38.243.8★214 rev
SITERWELL Smoke Detector Combo Smoke & Carbon Monoxide Alarm 10-Year Battery CO Detectors Smoke and Carbon Monoxide Detector with Bilingual Voice Alerts Reduced Nuisance Alarms 4 Packs
SITERWELL$160.214.3★75 rev
SITERWELL Smoke Detector Hardwired Interconnected Smoke Detector Photoelectric Smoke Alarm with 9V Backup Battery Fire Alarm with Test/Silence Button UL217-10th Listed GS562A 6 Packs
SITERWELL$99.344.4★663 rev
SITERWELL Hardwired Interconnected Smoke and Carbon Monoxide Detector 10 Year Product Life Alarm Smoke Carbon Monoxide Detectors with 2 AA Batteries Back Up Smoke and CO Detector (5 Packs)
SITERWELL$184.793.5★234 rev
Newest
by launch dateSITERWELL Smoke Detector Combo Smoke & Carbon Monoxide Alarm 10-Year Battery CO Detectors Smoke and Carbon Monoxide Detector with Bilingual Voice Alerts Reduced Nuisance Alarms 1 Pack
SITERWELL$42.0575 rev
SITERWELL Smoke Detector Combo Smoke & Carbon Monoxide Alarm 10-Year Battery CO Detectors Smoke and Carbon Monoxide Detector with Bilingual Voice Alerts Reduced Nuisance Alarms 4 Packs
SITERWELL$160.2175 rev
SITERWELL Hardwired Smoke Detector Carbon Monoxide Detector 10 Year Battery Meets UL217-9th Standards Interconnected Smoke and Carbon Monoxide Detector Combo with Bilingual Voice Alerts 1 Pack
SITERWELL$41.7469 rev
Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery with Bilingual Voice Alerts Fire Smoke & Carbon Monoxide Alarms for Home Standalone Model 1 Pack
SITERWELL$37.5687 rev
SITERWELL Smoke Detector 2 in 1 Smoke and Carbon Detectors 10-Year Battery CO Alarm Combo with Bilingual Voice Alerts Reduced Nuisance Alarms 2 Packs
SITERWELL$81.2475 rev
Trending
90-day click momentum
SITERWELL Smoke Detector Smoke Detector 10 Year Battery with Photoelectric Sensor Fire Alarm with Low Battery and Fault Warning for House and Bedroom UL217 Listed GS525A (2 Packs)
SITERWELL$38.624.5★
SITERWELL Smoke Detector Hardwired Interconnected Smoke Detector Photoelectric Smoke Alarm with 9V Backup Battery Fire Alarm with Test/Silence Button UL217-10th Listed GS562A 4 Packs
SITERWELL$69.954.4★
SITERWELL Smoke Detector Smoke Detector 10 Year Battery with Photoelectric Sensor Fire Alarm with Low Battery and Fault Warning for House and Bedroom UL217 Listed GS525A 6 Packs
SITERWELL$88.184.5★
SITERWELL Smoke Detector 10 Year Product Life Fire Alarm with Magnetic Fastening Kit Smoke Alarm with Photoelectric Sensor and Low Battery Warning Function for House UL217 Listed GS509A 6 Pack
SITERWELL$65.614.6★
SITERWELL Smoke Detector Smoke Alarm 10 Year Battery with Photoelectric Sensor Fire Alarm with Low Battery and Fault Warning for House and Bedroom UL217 Listed GS525A 1 Pack
SITERWELL$20.394.5★
What buyers say about siterwell smoke and carbon monoxide detector
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to mount”
“Great value”
“Quality replacement”
“As advertised”
“Easy to use”
“Works great”
“Great little alarms”
“Perfect fit”
“Detector”
“Love the 10 year battery life”
What buyers complain about
“Failed after two years”
“began incredibly irritating beeping”
“Incorrect dimensions, Non-returnable”
“it was a waste of money spent on this product”
“Item Malfunctioned and is now useless”
“just mostly false alarms”
“battery not removable”
“Isnt compatible”
“I wanted something I could easily set up myself, this is not it”
“Absolute worst piece of garbage ever”
Top return reasons
Common questions
- Is siterwell smoke and carbon monoxide detector profitable to sell on Amazon United States?
- The niche generates $80K/yr across 28 tracked products. 90-day search growth is -16.0%. Flapen's verdict: Worth a look (51/100).
- How competitive is the siterwell smoke and carbon monoxide detector niche?
- 3 brands and 24 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in siterwell smoke and carbon monoxide detector?
- Top complaints mined from reviews: Durability, Noise Level, Size-Overall. The return rate is 1.5%.
- What does it cost to enter the siterwell smoke and carbon monoxide detector niche?
- Listings span $14.92–$215.51; the average listing price is $80.68 (sweet spot $15–$100). The average incumbent carries 327 reviews — the moat a new listing must climb.