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Radon is a radioactive gas that can enter homes. A home detector gives readings; follow official guidance for testing and mitigation.
This guide is built from Amazon product listings, not our own testing, so confirm specs, safety ratings and current price on each product page.
Prices are approximate US dollar conversions of what Amazon showed on October 31, 2026.
Last updated: October 31, 2026.
Quick Picks
| Product | Type | Best for |
|---|---|---|
| HOUND-1008 Radon Detector | Radon detector | Long battery life |
| HOUND-1011S Portable Radon Detector | Radon detector | Portable home use |
| X-Sense Radon Detector (XR0A-SR) | Radon detector | Zero lab fees |
| Radon Detector by Forensics | Radon detector | 20-year sensor life |
| Airthings Corentium Home Radon Detector 223 | Radon detector | Established brand |
Our Picks
1. HOUND-1008 Radon Detector
A HOUND-1008 radon detector for the home with a 400-day battery life, per the listing. It was shown at about $45 on Amazon.com on October 31, 2026.
Good for: Long battery life. Watch out: short-term readings vary.
2. HOUND-1011S Portable Radon Detector
A HOUND-1011S portable radon detector with a high-accuracy sensor for home, per the listing. It was shown at about $50 on Amazon.com on October 31, 2026.
Good for: Portable home use. Watch out: short-term readings vary.
3. X-Sense Radon Detector (XR0A-SR)
An X-Sense XR0A-SR radon detector for basements with zero lab fees, per the listing. It was shown at about $54 on Amazon.com on October 31, 2026.
Good for: Zero lab fees. Watch out: short-term readings vary.
4. Radon Detector by Forensics
A home-use radon detector by Forensics with an upgraded 20-year sensor life, per the listing. It was shown at about $79 on Amazon.com on October 31, 2026.
Good for: 20-year sensor life. Watch out: higher price.
5. Airthings Corentium Home Radon Detector 223
An Airthings Corentium Home radon detector 223, portable and lightweight, per the listing. It was shown at about $145 on Amazon.com on October 31, 2026.
Good for: Established brand. Watch out: high price.
How to Choose
Short vs long term
Long-term readings are more reliable.
Display
Look for clear readouts.
Placement
Test in the lowest lived-in level.
Frequently Asked Questions
Do I need a radon detector?
Radon is common; testing is the only way to know.
Cheapest?
HOUND-1008.
Brand?
Airthings.
Bottom Line
For value, the HOUND-1008 or 1011S. For a known brand, the Airthings Corentium.
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