---
title: "Steadfast Haven Co Detector — $508K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/steadfast-haven-co-detector"
last_updated: "2026-08-08T00:35:54.915Z"
locale: en
meta:
description: "Niche score 46/100 · $508K/yr market · 862K searches/yr · $44.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $508K/yr market · 862K searches/yr · $44.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Steadfast Haven Co Detector — $508K/yr Amazon US Niche (2026) - Flapen"
---
# **steadfast haven co detector**
**Skip it**
Soft demand (-67.4% this quarter) — this niche doesn't clear our bar today.
Market size 60Growth 0Conversion 17Competition 46Returns 68Price range 95Avg price 95Brand share 35Review moat 28Quality gap 72
**Avg price**
**Incredible****$44.67**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$22.91–$78.87**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Returns**
**Good****2.3%**
return rate — above 5% kills the launch gate
**Market size**
**Good****$508K**
$508K/yr · 862K searches
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****84%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****3,732.64**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-67.4%**
90-day search growth — must beat 0% to launch
**Signals**[** 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, steadfast haven co detector is a $508K/yr Amazon United States market (862K searches/yr). The top 5 brands hold 84% of demand. Verdict: Skip it — 46/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **steadfast haven co detector market data**
- **Units sold / yr**
- **20K–25K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$893K–$1.1M**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#51**
- **Page quality**
- **0%**
- **Prime**
- **82%**
- **Sponsored**
- **89%**
- **Out of stock**
- **26.1%**
- **Avg brand age**
- **24 months**
- **Avg seller age**
- **139 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▲rising
**Sellers**
**77**
**Top-5 brand share**
**84%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 92%
**Open market**
**14%**
- Kidde57% - AIRGUARD DETECTOR11% - Steadfast Haven Pro7% - Generic5% - Dienmern4% - SONOFF2% - Open — no brand owns it (9 brands, 14%)
## **Demand**
Weekly Amazon search volume, last 17 weeks — -67.4% search growth over the last 90 days.
70K50KPrime Day '26Apr '26Apr '26May '26May '26May '26Jun '26Jun '26Jul '26Jul '26
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/steadfast-haven-co-detector/trend)
## **Top steadfast haven co detector search terms**
- **airguard carbon monoxide detector**69K/yr>1,000%0.7% conv. - **steadfast haven co detector**399K/yr-91.8%0.1% conv. - **air guard co detector**25K/yr>1,000%0.5% conv. - **haven carbon monoxide detector**49K/yr-56.0%0.4% conv. - **air guard carbon monoxide detector**12K/yr>1,000%0.4% conv. - **steadfast haven carbon monoxide detector**64K/yr-80.7%0.2% conv. - **carbon one safe carbon monoxide**8K/yr+0.0%0.7% conv. - **airguard co detector**7K/yr>1,000%0.5% conv. - **kidde nighthawk carbon monoxide detector**19K/yr-37.6%8.6% conv. - **haven co and gas detector**18K/yr-78.5%0.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/steadfast-haven-co-detector/search-terms)
## **Top steadfast haven co 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%5%$25K10%$51K15%$76K20%$102K1101001K10K100K 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**Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COPD**Kidde**$44.23**4.7★27,258 rev](https://www.amazon.com/dp/B0G1C86M5S) [2**Kidde Carbon Monoxide Detector Plug-In with 9V Battery Backup Digital Display 85 dB Alarm LED Status Light Indicators 3rd Edition**Kidde**$39.14**4.7★27,258 rev](https://www.amazon.com/dp/B00002N86A) [3**4 in 1 Detector 2Pcs**AIRGUARD DETECTOR**$78.63**5.0★4 rev](https://www.amazon.com/dp/B0H89T5G2D) [4**Kidde Carbon Monoxide + Explosive Gas Natural Gas & Propane Alarm Plug-in with 9V Battery Backup Digital Display 85 dB Alarm LED Status Indicators 3rd Edition**Kidde**$59.28**4.6★551 rev](https://www.amazon.com/dp/B0DT1MS1D1) [5**Steadfast Haven Pro 2026 NEW 4-in-1 Indoor Status Display HD Screen Plug-in Environment Information Device for Home RV and Hotel (3 Black)**Steadfast Haven Pro**$78.87**5.0★2 rev](https://www.amazon.com/dp/B0H5N9J18J)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**6-in-1 Air Monitor Plug in with Temperature Humidity and More for Kitchen(Gray 1-Pack)**Generic**$39.62**4 rev2w ago](https://www.amazon.com/dp/B0H93VTSKG) [**2 Pack Air Quality Detectors Plug in Wall Design Upgraded 5 in 1 HD Screen Detector with Temp Humidity High Accuracy Indoor Monitor for Home Apartment Hotel Camping RV Greenhouse**Generic**$59.46**1 rev2w ago](https://www.amazon.com/dp/B0H8Y62BPW) [**4 in 1 Detector 2Pcs**AIRGUARD DETECTOR**$78.63**4 rev3w ago](https://www.amazon.com/dp/B0H89T5G2D) [**Steadfast Haven Pro 2026 NEW 4-in-1 Indoor Status Display HD Screen Plug-in Environment Information Device for Home RV and Hotel (3 Black)**Steadfast Haven Pro**$78.87**2 rev1mo ago](https://www.amazon.com/dp/B0H5N9J18J) [**Steadfast Haven Pro 2026 NEW 4-in-1 Indoor Status Display HD Screen Plug-in Environment Information Device for Home RV and Hotel (1 Black)**Steadfast Haven Pro**$35.60**2 rev1mo ago](https://www.amazon.com/dp/B0H5NRGRD4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Steadfast Haven Pro 2026 NEW 4-in-1 Indoor Status Display HD Screen Plug-in Environment Information Device for Home RV and Hotel (1 Black)**Steadfast Haven Pro**$35.60**5.0★**▲ 65%**](https://www.amazon.com/dp/B0H5NRGRD4) [**6-in-1 Air Monitor Plug in with Temperature Humidity and More for Kitchen(Gray 1-Pack)**Generic**$39.62**5.0★**▲ 65%**](https://www.amazon.com/dp/B0H93VTSKG) [**5-in-1 CO2 Carbon Dioxide Detector Dienmern Portable Air Quality Monitor Indoor 1600mAh Powerful Battery CO2 Monitor for CO2/Temp/Humidity LED Display CO2 Detector for Travel/Office/Home/Grow Tents**Dienmern**$23.35**3.0★**▲ 64%**](https://www.amazon.com/dp/B0GTB442ND) [**2 Pack Air Quality Detectors Plug in Wall Design Upgraded 5 in 1 HD Screen Detector with Temp Humidity High Accuracy Indoor Monitor for Home Apartment Hotel Camping RV Greenhouse**Generic**$59.46**5.0★**▲ 64%**](https://www.amazon.com/dp/B0H8Y62BPW) [**4 in 1 Detector 2Pcs**AIRGUARD DETECTOR**$78.63**5.0★**▲ 64%**](https://www.amazon.com/dp/B0H89T5G2D)
**~~View all trending →~~**
## **What buyers say about steadfast haven co detector**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**13%
*“Easy to mount”*
**Quality-Overall**13%
*“the overall build quality feels solid”*
**Ease Of Use**10%
*“Easy peasy”*
**Value For Money**9%
*“Excellent value”*
**Advertised Vs Actual Product**8%
*“Just what I needed”*
**Battery Life**5%
*“Long lasting battery”*
**Efficiency**4%
*“Unit works fine”*
**Sensor**3%
*“Overall, this is a straightforward and user-friendly detector with useful features and added convenience”*
**Size-Overall**3%
*“Fit perfect in my camper”*
**Security**2%
*“Keeps you safe”*
### **What buyers complain about **
**Durability**8%
*“Failed in less than 3 months”*
**Functionality-Overall**8%
*“Didn't work right out of box”*
**Noise Level**7%
*“Its quite loud”*
**Battery Life**7%
*“Beeps as battery are low”*
**Measurement/Reading Accuracy**4%
*“Poor CO2 accuracy”*
**Size-Overall**4%
*“This is a small”*
**Value For Money**3%
*“these should be way cheaper”*
**Quality-Overall**3%
*“VERY POOR quality control”*
**Connectivity-Overall**3%
*“The fallback of connecting with bluetooth is inconsistent”*
**Product Condition**3%
*“Very old product”*
### **Top return reasons **
**Functionality-Overall**13%
**Alarm/Timer Accuracy**13%
**Size-Overall**11%
**Advertised Vs Actual Product**10%
**Value For Money**9%
**Defective Material/Parts**5%
**Socket/Port/Plug**5%
**Product Condition**5%
**Compatibility-Overall**3%
**Battery Life**3%
## **Common questions**
- **Is steadfast haven co detector profitable to sell on Amazon United States?**
- The niche generates $508K/yr across 28 tracked products. 10 of 18 products launched in the last 360 days are still selling. 90-day search growth is -67.4%. Flapen's verdict: Skip it (46/100).
- **How competitive is the steadfast haven co detector niche?**
- 15 brands and 77 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 84% of demand.
- **What do buyers complain about in steadfast haven co detector?**
- Top complaints mined from reviews: Durability, Functionality-Overall, Noise Level. The return rate is 2.3%.
- **What does it cost to enter the steadfast haven co detector niche?**
- Listings span $22.91–$78.87; the average listing price is $44.67 (sweet spot $15–$100). The average incumbent carries 3,733 reviews — the moat a new listing must climb.
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