---
title: "Radon Detector for Home — $5.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/radon-detector-for-home"
last_updated: "2026-08-06T08:50:33.129Z"
locale: en
meta:
description: "Niche score 50/100 · $5.4M/yr market · 969K searches/yr · $94.88 avg price. Soft demand (-26.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $5.4M/yr market · 969K searches/yr · $94.88 avg price. Soft demand (-26.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Radon Detector for Home — $5.4M/yr Amazon US Niche (2026) - Flapen"
---
# **radon detector for home**
**Worth a look**
Shows a $5.4M/yr market, but soft demand (-26.3% this quarter) keeps it on the watch list.
Market size 98Growth 12Conversion 66Competition 44Returns 47Price range 29Avg price 77Brand share 24Review moat 49Quality gap 50
**Market size**
**Incredible****$5.4M**
$5.4M/yr · 969K searches
**Avg price**
**Great****$94.88**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****5.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,558.18**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****3.3%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Okay****$9.29–$305.91**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Bad****90%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-26.3%**
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")
According to Flapen's Amazon United States niche tracking, radon detector for home is a $5.4M/yr Amazon United States market (969K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Jan. Verdict: Worth a look — 50/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **radon detector for home market data**
- **Units sold / yr**
- **40K–50K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$3.8M–$4.7M**
- units × avg price
- **Conversion rate**
- **5.9%**
- **Avg BSR**
- **#43**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **91%**
- **Out of stock**
- **4.3%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **153 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**60**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 98%
**Open market**
**7%**
- Airthings36% - AEGTEST33% - X-Sense12% - FORENSICS DETECTORS FD5% - First Alert4% - PRO-LAB2% - Open — no brand owns it (5 brands, 7%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -26.3% search growth over the last 90 days.
30K20KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/radon-detector-for-home/trend)
## **Top radon detector for home search terms**
- **radon detector**515K/yr-27.2%5.1% conv. - **radon detector for home**152K/yr-30.3%5.4% conv. - **radon**40K/yr-6.6%3.3% conv. - **airthings radon detector**49K/yr-32.3%6.1% conv. - **radon tester**34K/yr-23.9%5.1% conv. - **radon monitor**37K/yr-19.4%3.4% conv. - **radon detector for home basement**25K/yr-15.6%5.7% conv. - **air things radon monitor**13K/yr-16.9%6.1% conv. - **continuous radon monitor**12K/yr-23.1%4.6% conv. - **airthings corentium home**7K/yr+10.3%8.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/radon-detector-for-home/search-terms)
## **Top radon detector for home 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%$272K10%$544K15%$816K20%$1.1M101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Airthings Corentium Home Radon Detector 223 Portable Lightweight Easy-to-Use (3) AAA Battery Operated USA Version pCi/L**Airthings**$128.72**4.6★10,786 rev](https://www.amazon.com/dp/B00H2VOSP8) [2**AEGTEST HOUND-1011S Portable Radon Detector High-Accuracy Sensor for Home Lightweight Audible & Visual Alarms Long-Term Monitoring Easy-to-Use Radon Tester in pCi/L or Bq/m for Basement**AEGTEST**$59.58**4.6★501 rev](https://www.amazon.com/dp/B0FR4L9GZG) [3**Airthings 325 Corentium Home 2 Smart Digital Radon Detector - Portable and Easy-to-use Radon Testing with Bluetooth connectivity and Humidity & Temperature Sensors**Airthings**$172.01**4.6★313 rev](https://www.amazon.com/dp/B0F84C4ZZM) [4**X-Sense Radon Detector for Basement Zero Lab Fees XR0A-SR White**X-Sense**$63.61**4.5★1,031 rev](https://www.amazon.com/dp/B0FGD7FCCF) [5**Radon Detector by Forensics | Home Use | Upgraded 20-Year Sensor Life | Version 2.0 |**FORENSICS DETECTORS FD**$88.55**4.5★153 rev](https://www.amazon.com/dp/B0FG1MY86C)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**HOUND-2070 Radon Detector for Home Tempertaure & Humidity Display 504 Days Data Storage for Long-Term Monitoring Rechargeable 3-in-1 Portable Radon Tester for Basement pCi/L or Bq/m**AEGTEST**$59.65**58 rev1mo ago](https://www.amazon.com/dp/B0GZVJBRH1) [**X-Sense Radon Detector for Basement Zero Lab Fees XR0A-SR Black**X-Sense**$59.85**1,031 rev4mo ago](https://www.amazon.com/dp/B0GTYHTP1Q) [**METRINARY Radon Detector for Home Radon Monitor with 6H Quick Result**METRINARY**$69.67**37 rev6mo ago](https://www.amazon.com/dp/B0GGGGYYM6) [**AEGTEST HOUND-1011S Portable Radon Detector High-Accuracy Sensor for Home Lightweight Audible & Visual Alarms Long-Term Monitoring Easy-to-Use Radon Tester in pCi/L or Bq/m for Basement**AEGTEST**$59.21**501 rev7mo ago](https://www.amazon.com/dp/B0G24BL372) [**Radon Detector E-Ink Screen Alpha Spectrometer Sensor 2-Year Battery Life Wall Mounted & Free Standing PCi/L & Bq/m Units Switchable Hello Radon C for Home Office Workplace**RADON SENSE**$67.88**15 rev8mo ago](https://www.amazon.com/dp/B0G2Q639YC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**HOUND-2070 Radon Detector for Home Tempertaure & Humidity Display 504 Days Data Storage for Long-Term Monitoring Rechargeable 3-in-1 Portable Radon Tester for Basement pCi/L or Bq/m**AEGTEST**$59.65**4.8★**▲ 293%**](https://www.amazon.com/dp/B0GZVJBRH1) [**X-Sense Radon Detector for Basement Zero Lab Fees XR0A-SR Black**X-Sense**$59.85**4.5★**▲ 292%**](https://www.amazon.com/dp/B0GTYHTP1Q) [**Radon Detector E-Ink Screen Alpha Spectrometer Sensor 2-Year Battery Life Wall Mounted & Free Standing PCi/L & Bq/m Units Switchable Hello Radon C for Home Office Workplace**RADON SENSE**$67.88**4.5★**▲ 274%**](https://www.amazon.com/dp/B0G2Q639YC) [**METRINARY Radon Detector for Home Radon Monitor with 6H Quick Result**METRINARY**$69.67**4.7★**▲ 235%**](https://www.amazon.com/dp/B0GGGGYYM6) [**AEGTEST HOUND-1011S Portable Radon Detector High-Accuracy Sensor for Home Lightweight Audible & Visual Alarms Long-Term Monitoring Easy-to-Use Radon Tester in pCi/L or Bq/m for Basement**AEGTEST**$59.58**4.6★**▲ 151%**](https://www.amazon.com/dp/B0FR4L9GZG)
**~~View all trending →~~**
## **What buyers say about radon detector for home**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**22%
*“Easy to operate”*
**Quality-Overall**12%
*“Excellent product”*
**Value For Money**9%
*“Good price”*
**Efficiency**6%
*“Works great”*
**Advertised Vs Actual Product**6%
*“Works as advertised”*
**Battery Life**6%
*“Battery lasts a long time”*
**Instructions/User Manual/Troubleshooting**5%
*“the instructions are clear”*
**Measurement/Reading Accuracy**4%
*“It is accurate”*
**Assembly/Installation**3%
*“Easy Set Up”*
**Charging**2%
*“charging with USB C is simple”*
### **What buyers complain about **
**Measurement/Reading Accuracy**14%
*“I have no way to calibrate it for accuracy”*
**Value For Money**13%
*“Highly would not recommend for the price”*
**Connectivity-Overall**8%
*“continues to lose connection”*
**Functionality-Overall**7%
*“Eventually the display would go blank for a week or more and then come back on”*
**Durability**6%
*“Stopped working after about one month”*
**Quality-Overall**5%
*“Poor quality”*
**Instructions/User Manual/Troubleshooting**5%
*“Terrible instructions”*
**Charging**3%
*“No charger”*
**Ease Of Use**3%
*“I can't use it”*
**Display-Overall**3%
*“Eventually the display would go blank for a week or more”*
### **Top return reasons **
**Functionality-Overall**22%
**Value For Money**16%
**Measurement/Reading Accuracy**12%
**Advertised Vs Actual Product**10%
**Connectivity-Overall**9%
**Product Condition**5%
**Display-Overall**4%
**Compatibility-Overall**3%
**Defective Material/Parts**3%
**Certifications**2%
## **Common questions**
- **Is radon detector for home profitable to sell on Amazon United States?**
- The niche generates $5.4M/yr across 22 tracked products. 7 of 8 products launched in the last 360 days are still selling. 90-day search growth is -26.3%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the radon detector for home niche?**
- 11 brands and 60 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in radon detector for home?**
- Top complaints mined from reviews: Measurement/Reading Accuracy, Value For Money, Connectivity-Overall. The return rate is 3.3%.
- **When does demand for radon detector for home peak?**
- Demand peaks in Jan; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the radon detector for home niche?**
- Listings span $9.29–$305.91; the average listing price is $94.88 (sweet spot $15–$100). The average incumbent carries 1,558 reviews — the moat a new listing must climb.
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