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.

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

Incredible$5.4M

$5.4M/yr · 969K searches

Avg price

Great$94.88

avg listing price — sweet spot $15–$100

Conversion

Good5.9%

search→purchase rate — share of searches ending in a sale

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay1,558.18

avg incumbent reviews — the moat a new listing must climb

Returns

Okay3.3%

return rate — above 5% kills the launch gate

Competition

Okay58%

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

Bad90%

top-5 brand share — brand-locked demand

Growth

Bad-26.3%

90-day search growth — must beat 0% to launch

Signals High Price

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

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

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

58%

Top 20: 98%

Open market

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.

Peak months: Jan · busiest ÷ quietest = 1.6×

Open Trend

Top radon detector for home search terms

radon detector515K/yr -27.2%5.1% conv.
radon detector for home152K/yr -30.3%5.4% conv.
radon40K/yr -6.6%3.3% conv.
airthings radon detector49K/yr -32.3%6.1% conv.
radon tester34K/yr -23.9%5.1% conv.
radon monitor37K/yr -19.4%3.4% conv.
radon detector for home basement25K/yr -15.6%5.7% conv.
air things radon monitor13K/yr -16.9%6.1% conv.
continuous radon monitor12K/yr -23.1%4.6% conv.
airthings corentium home7K/yr +10.3%8.2% conv.

All 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.

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

Airthings Corentium Home Radon Detector 223 Portable Lightweight Easy-to-Use (3) AAA Battery Operated USA Version pCi/L

Airthings$128.724.6★10,786 rev

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$59.584.6★501 rev

Airthings 325 Corentium Home 2 Smart Digital Radon Detector - Portable and Easy-to-use Radon Testing with Bluetooth connectivity and Humidity & Temperature Sensors

Airthings$172.014.6★313 rev

X-Sense Radon Detector for Basement Zero Lab Fees XR0A-SR White

X-Sense$63.614.5★1,031 rev

Radon Detector by Forensics | Home Use | Upgraded 20-Year Sensor Life | Version 2.0 |

FORENSICS DETECTORS FD$88.554.5★153 rev

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$59.6558 rev

1mo ago

X-Sense Radon Detector for Basement Zero Lab Fees XR0A-SR Black

X-Sense$59.851,031 rev

4mo ago

METRINARY Radon Detector for Home Radon Monitor with 6H Quick Result

METRINARY$69.6737 rev

6mo ago

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$59.21501 rev

7mo ago

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$67.8815 rev

8mo ago

What buyers say about radon detector for home

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Use22%

“Easy to operate”

Quality-Overall12%

“Excellent product”

Value For Money9%

“Good price”

Efficiency6%

“Works great”

Advertised Vs Actual Product6%

“Works as advertised”

Battery Life6%

“Battery lasts a long time”

Instructions/User Manual/Troubleshooting5%

“the instructions are clear”

Measurement/Reading Accuracy4%

“It is accurate”

Assembly/Installation3%

“Easy Set Up”

Charging2%

“charging with USB C is simple”

What buyers complain about

Measurement/Reading Accuracy14%

“I have no way to calibrate it for accuracy”

Value For Money13%

“Highly would not recommend for the price”

Connectivity-Overall8%

“continues to lose connection”

Functionality-Overall7%

“Eventually the display would go blank for a week or more and then come back on”

Durability6%

“Stopped working after about one month”

Quality-Overall5%

“Poor quality”

Instructions/User Manual/Troubleshooting5%

“Terrible instructions”

Charging3%

“No charger”

Ease Of Use3%

“I can't use it”

Display-Overall3%

“Eventually the display would go blank for a week or more”

Top return reasons

Functionality-Overall22%

Value For Money16%

Measurement/Reading Accuracy12%

Advertised Vs Actual Product10%

Connectivity-Overall9%

Product Condition5%

Display-Overall4%

Compatibility-Overall3%

Defective Material/Parts3%

Certifications2%

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.