---
title: "Siterwell Smoke Detector — $156K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/siterwell-smoke-detector"
last_updated: "2026-08-08T14:41:26.331Z"
locale: en
meta:
description: "Niche score 53/100 · $156K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $156K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Siterwell Smoke Detector — $156K/yr Amazon US Niche (2026) - Flapen"
---
# **siterwell smoke detector**
**Worth a look**
Shows low returns (1.2%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 33Growth 18Conversion 72Competition 75Returns 91Price range 50Avg price 86Brand share 0Review moat 73Quality gap 72
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$70.92**
avg listing price — sweet spot $15–$100
**Competition**
**Good****40%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Good****590.82**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****6.6%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Price range**
**Good****$14.92–$184.79**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$156K**
$156K/yr · 33K searches
**Growth**
**Bad****-15.0%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United States niche tracking, siterwell smoke detector is a $156K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **siterwell smoke detector market data**
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$89K–$106K**
- units × avg price
- **Conversion rate**
- **6.6%**
- **Avg BSR**
- **#52**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **17.2%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**3 **▲rising
**Sellers**
**19**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**40%**
Top 20: 87%
**Open market**
**0%**
- SITERWELL97% - First Alert2% - siterlink1%
## **Demand**
Weekly Amazon search volume, last 30 weeks — -15.0% search growth over the last 90 days.
700500Spike '26Jan '26Feb '26Mar '26Apr '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/siterwell-smoke-detector/trend)
## **Top siterwell smoke detector search terms**
- **siterwell smoke detector**13K/yr-13.0%6.0% conv. - **siterwell smoke and carbon monoxide detector**8K/yr-18.5%5.0% conv. - **siterwell gs517**6K/yr+7.8%1.8% conv. - **siterwell**3K/yr-30.8%1.7% conv. - **siterlink smoke detector**3K/yr-27.0%5.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/siterwell-smoke-detector/search-terms)
## **Top siterwell smoke 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.
0%4%$6K8%$12K12%$19K16%$25K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$20.39**4.5★422 rev](https://www.amazon.com/dp/B0CQQGLJZ3) [2**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**$88.18**4.5★422 rev](https://www.amazon.com/dp/B0CQQGDYNJ) [3**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**$69.95**4.4★663 rev](https://www.amazon.com/dp/B0D8KLNJXF) [4**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**$65.61**4.6★148 rev](https://www.amazon.com/dp/B0CR3721RY) [5**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**$42.05**4.3★75 rev](https://www.amazon.com/dp/B0DMFLD2BW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**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**$42.05**75 rev1y ago](https://www.amazon.com/dp/B0DMFLD2BW) [**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**$160.21**75 rev1y ago](https://www.amazon.com/dp/B0DMFDTQ9Q) [**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**$37.56**87 rev1y ago](https://www.amazon.com/dp/B0DMF8S77C) [**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**$41.74**69 rev1y ago](https://www.amazon.com/dp/B0DMFJPJS9) [**SITERLINK Smoke Detectors Smoke Alarms with Replaceable Battery Photoelectric Sensor Smoke Detector with Test-Silence Button Fire Detectors for Home House GS509A 4-Pack**SITERWELL**$51.65**157 rev1y ago](https://www.amazon.com/dp/B0DK4XF3S4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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 UL217-10th Listed GS509A 2 Pack**SITERWELL**$28.57**4.5★**▲ 168%**](https://www.amazon.com/dp/B0DJNGHB58) [**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**$38.62**4.5★**▲ 136%**](https://www.amazon.com/dp/B0CQQDYG3G) [**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 (4 Packs)**SITERWELL**$66.80**4.5★**▲ 118%**](https://www.amazon.com/dp/B0CQQG7SK7) [**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**$69.95**4.4★**▲ 70%**](https://www.amazon.com/dp/B0D8KLNJXF) [**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**$88.18**4.5★**▲ 64%**](https://www.amazon.com/dp/B0CQQGDYNJ)
**~~View all trending →~~**
## **What buyers say about siterwell smoke detector**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**26%
*“Easily installed”*
**Value For Money**14%
*“Good price”*
**Quality-Overall**12%
*“Excellent product”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Efficiency**4%
*“Does the job”*
**Ease Of Use**4%
*“Easy to Use”*
**Battery Life**3%
*“make the battery more long lasting”*
**Alarm/Timer Accuracy**2%
*“Great little alarms”*
**Sensor**2%
*“Great detector”*
**Size-Overall**2%
*“Fit great”*
### **What buyers complain about **
**Battery Life**14%
*“Batteries don't last long”*
**Durability**12%
*“Failed after 7 months”*
**Noise Level**8%
*“Loud”*
**Functionality-Overall**7%
*“Does not work correctly”*
**Alarm/Timer Accuracy**6%
*“Alarm activates for no apparent reason”*
**Quality-Overall**5%
*“Poor quality”*
**Size-Overall**4%
*“These are quite small”*
**Defective Material/Parts**3%
*“Defective”*
**Assembly/Installation**3%
*“Complicated setup”*
**Instructions/User Manual/Troubleshooting**3%
*“The instructions on this thing are completely confusing”*
### **Top return reasons **
**Alarm/Timer Accuracy**32%
**Size-Overall**18%
**Compatibility-Overall**13%
**Connectivity-Overall**6%
**Functionality-Overall**6%
**Value For Money**6%
**Advertised Vs Actual Product**4%
**Defective Material/Parts**3%
**Assembly/Installation**2%
**Socket/Port/Plug**1%
## **Common questions**
- **Is siterwell smoke detector profitable to sell on Amazon United States?**
- The niche generates $156K/yr across 34 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -15.0%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the siterwell smoke detector niche?**
- 3 brands and 19 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in siterwell smoke detector?**
- Top complaints mined from reviews: Battery Life, Durability, Noise Level. The return rate is 1.2%.
- **What does it cost to enter the siterwell smoke detector niche?**
- Listings span $14.92–$184.79; the average listing price is $70.92 (sweet spot $15–$100). The average incumbent carries 591 reviews — the moat a new listing must climb.
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