---
title: "Airshield Carbon Monoxide Detector — $128K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/airshield-carbon-monoxide-detector"
last_updated: "2026-08-08T15:02:23.927Z"
locale: en
meta:
description: "Niche score 36/100 · $128K/yr market · 133K searches/yr · $51.16 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · $128K/yr market · 133K searches/yr · $51.16 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Airshield Carbon Monoxide Detector — $128K/yr Amazon US Niche (2026) - Flapen"
---
# **airshield carbon monoxide detector**
**Skip it**
Soft demand (-57.8% this quarter) — this niche doesn't clear our bar today.
Market size 29Growth 0Conversion 23Competition 25Returns 63Price range 95Avg price 93Brand share 31Review moat 24Quality gap 53
**Price range**
**Incredible****$27.76–$78.63**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$51.16**
avg listing price — sweet spot $15–$100
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$128K**
$128K/yr · 133K searches
**Competition**
**Bad****70%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****5,167.07**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Bad****1.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-57.8%**
90-day search growth — must beat 0% to launch
**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, airshield carbon monoxide detector is a $128K/yr Amazon United States market (133K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 36/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **airshield carbon monoxide detector market data**
- **Units sold / yr**
- **4K–5K**
- avg 250–500/product
- **Revenue / yr**
- **$205K–$256K**
- units × avg price
- **Conversion rate**
- **1.9%**
- **Avg BSR**
- **#63**
- **Page quality**
- **0%**
- **Prime**
- **87%**
- **Sponsored**
- **93%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **26 months**
- **Avg seller age**
- **163 days**
## **Competition & brand share**
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **
**Sellers**
**46**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**10%**
- Kidde65% - CoillBlow9% - GoveeLife5% - LSENLTY5% - SwitchBot4% - TOPTES3% - Open — no brand owns it (4 brands, 10%)
## **Demand**
Weekly Amazon search volume, last 34 weeks — -57.8% search growth over the last 90 days.
5K3KSpike '26Prime Day '26Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jul '26
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/airshield-carbon-monoxide-detector/trend)
## **Top airshield carbon monoxide detector search terms**
- **dewlora 4-in-1 co detector**78K/yr-38.3%0.5% conv. - **dewlora 4 in 1 co detector**9K/yr-37.1%0.2% conv. - **delora 4 in 1 co detector**26K/yr-86.0%0.5% conv. - **delora 4 in 1 carbon monoxide detector**3K/yr-78.4%0.8% conv. - **delora carbon monoxide detector**5K/yr-84.7%0.0% conv. - **delora co detector**4K/yr-87.4%0.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/airshield-carbon-monoxide-detector/search-terms)
## **Top airshield 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.
0%15%$19K30%$38K45%$57K60%$77K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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) [2**8-in-1 Indoor Air Quality Monitor Portable CO2 Detector with LCD Color Screen Formaldehyde HCHO TVOC Temperature Humidity Tester USB Rechargeable Air Quality Meter for Home Office Car Travel**CoillBlow**$42.54**5.0★51 rev](https://www.amazon.com/dp/B0H6MQX8F8) [3**Kidde Carbon Monoxide Detector AA Battery Powered CO Alarm with LEDs Test-Reset Button Low Battery Indicator Portable**Kidde**$27.76**4.7★19,829 rev](https://www.amazon.com/dp/B004Y6V5CI) [4**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) [5**GoveeLife Smart Air Quality Monitor CO2 Detector H5140 Display & Alarm**GoveeLife**$66.04**4.5★190 rev](https://www.amazon.com/dp/B0FFMZL15X)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**4 in 1 Detector 2Pcs**AIRGUARD DETECTOR**$78.63**4 rev3w ago](https://www.amazon.com/dp/B0H89T5G2D) [**8-in-1 Indoor Air Quality Monitor Portable CO2 Detector with LCD Color Screen Formaldehyde HCHO TVOC Temperature Humidity Tester USB Rechargeable Air Quality Meter for Home Office Car Travel**CoillBlow**$42.54**51 rev1mo ago](https://www.amazon.com/dp/B0H6MQX8F8) [**Kidde Smart CO Detector + Indoor Air Quality Plug-in & AA Battery COPDLQW**Kidde**$77.25**46 rev4mo ago](https://www.amazon.com/dp/B0G1CRBH9K) [**Kidde Carbon Monoxide Detector Plug-in & AA Battery Backup COPD**Kidde**$44.23**27,258 rev5mo ago](https://www.amazon.com/dp/B0G1C86M5S) [**Indoor Air Quality Monitor 16-in-1 with CO2 Detector PM2.5P PM10 M1.0 HCHO & TVOC Portable Air Quality Tester with AQI Alerts Temperature & Humidity Meter Kit for Home Office Nursery RV**HSCLPM**$72.64**16 rev5mo ago](https://www.amazon.com/dp/B0GMFJSPCW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**5-in-1 air Quality Monitor Professional air Quality Detector with CO2 Monitor/Formaldehyde/TVOC/Temperature/Humidity Suitable for Home Hotel Office car**Ocdonor**$27.82**3.8★**▲ 28%**](https://www.amazon.com/dp/B0FMPXBJP9) [**4 in 1 Detector 2Pcs**AIRGUARD DETECTOR**$78.63**5.0★**▲ 28%**](https://www.amazon.com/dp/B0H89T5G2D) [**8-in-1 Indoor Air Quality Monitor Portable CO2 Detector with LCD Color Screen Formaldehyde HCHO TVOC Temperature Humidity Tester USB Rechargeable Air Quality Meter for Home Office Car Travel**CoillBlow**$42.54**5.0★**▲ 28%**](https://www.amazon.com/dp/B0H6MQX8F8) [**LSENLTY Upgraded CO2 Detector Plug in Wall Design 3 in 1 Air Quality Detector(Temp Humidity and CO2 Value) High Accuracy Air Quality Monitor with Threshold Reminder and Manual Calibration for Home**LSENLTY**$36.40**4.1★**▲ 28%**](https://www.amazon.com/dp/B0DWF12YJM) [**6-in-1 Air Quality Monitor Smart Indoor CO2 Detector & HCHO TVOC AQI Tester Accurate Temperature Humidity Meter with Color Display for Home Bedroom Office Car USB Powered**morhandisn**$48.46**3.5★**▲ 28%**](https://www.amazon.com/dp/B0GFVM2PKM)
**~~View all trending →~~**
## **What buyers say about airshield carbon monoxide detector**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“the overall build quality feels solid”*
**Assembly/Installation**11%
*“Easy set up”*
**Ease Of Use**10%
*“Easy to Use”*
**Value For Money**10%
*“Excellent value”*
**Advertised Vs Actual Product**9%
*“Exactly as advertised”*
**Efficiency**5%
*“Works great”*
**Battery Life**5%
*“the battery backup ensures protection even during power outages”*
**Sensor**5%
*“Great detector”*
**Design-Overall**3%
*“Genius design”*
**Durability**2%
*“So far so good with reliability”*
### **What buyers complain about **
**Functionality-Overall**7%
*“Didn't work right out of box”*
**Battery Life**7%
*“How does a brand new battery go dead within not even 3 weeks”*
**Durability**6%
*“Died after about a month”*
**Noise Level**6%
*“chirps which are loud”*
**Size-Overall**5%
*“not quite fitting”*
**Connectivity-Overall**4%
*“Would not stay connected to wifi”*
**Product Condition**4%
*“Very old product”*
**Value For Money**4%
*“Pricey”*
**Ease Of Use**3%
*“hard to use”*
**Measurement/Reading Accuracy**3%
*“was getting very clear non-zero readings”*
### **Top return reasons **
**Alarm/Timer Accuracy**14%
**Functionality-Overall**13%
**Size-Overall**12%
**Advertised Vs Actual Product**10%
**Value For Money**8%
**Defective Material/Parts**6%
**Product Condition**5%
**Compatibility-Overall**4%
**Battery Life**3%
**Display-Overall**3%
## **Common questions**
- **Is airshield carbon monoxide detector profitable to sell on Amazon United States?**
- The niche generates $128K/yr across 15 tracked products. 5 of 8 products launched in the last 360 days are still selling. 90-day search growth is -57.8%. Flapen's verdict: Skip it (36/100).
- **How competitive is the airshield carbon monoxide detector niche?**
- 10 brands and 46 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in airshield carbon monoxide detector?**
- Top complaints mined from reviews: Functionality-Overall, Battery Life, Durability. The return rate is 2.5%.
- **What does it cost to enter the airshield carbon monoxide detector niche?**
- Listings span $27.76–$78.63; the average listing price is $51.16 (sweet spot $15–$100). The average incumbent carries 5,167 reviews — the moat a new listing must climb.
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