Bottom line: The Airthings View Plus is the best radon monitor for most homeowners. Use code RADONSAFETY-10OFF at checkout for 10% off any Airthings product.
⚠️ Buying or selling a home? Consumer monitors do not meet EPA or state certification standards for real estate transactions. You need a certified short-term test kit instead.
Best Radon Monitors: Quick Comparison
| Monitor | Price | Best For | Link |
|---|---|---|---|
| Airthings View Plus ⭐ Top Pick | ~$299 | Best all-around: radon + 6 air quality sensors | Shop (code RADONSAFETY-10OFF) |
| Airthings Wave Plus | ~$229 | Mid-range, wave-to-read LED + app | Shop (code RADONSAFETY-10OFF) |
| SunRADON Luft | ~$199 | Professional-grade sensor, non-Airthings option | Shop SunRADON |
| Airthings Wave Radon | ~$140 | Radon-only, simple app | Shop (code RADONSAFETY-10OFF) |
| Airthings Corentium Home | ~$109 | Budget pick, no Wi-Fi needed | Shop (code RADONSAFETY-10OFF) |
Disclosure: We earn a commission on purchases through our affiliate links at no extra cost to you. Use code RADONSAFETY-10OFF at discount.airthings.com for 10% off.
#1 Best Overall: Airthings View Plus (~$299)
The Airthings View Plus is the most capable consumer radon monitor available. Beyond radon, it tracks PM2.5, CO₂, VOCs, humidity, temperature, and air pressure — giving you the full picture of your indoor air quality. The color e-ink display updates continuously. The app (iOS and Android) shows trends over days, weeks, and months.
Airthings is the global market leader in consumer radon detection. Their sensors are factory-calibrated and have been independently validated against professional instruments. The View Plus connects to Airthings’ SmartLink hub, so you can expand to multiple sensors throughout your home.
Best for: Homeowners who want ongoing radon monitoring plus broader air quality awareness — especially in finished basements, bedrooms, or home offices.
👉 Get the Airthings View Plus — use code RADONSAFETY-10OFF for 10% off
#2 Best Mid-Range: Airthings Wave Plus (~$229)
The Airthings Wave Plus covers radon, CO₂, VOCs, humidity, and temperature at a lower price than the View Plus. Its defining feature: wave your hand near the device to trigger a color-coded LED ring — green (safe), yellow (elevated), red (take action). No need to open an app to check your levels.
Best for: Homeowners who want more than just radon tracking without paying View Plus prices, and who want the wave-to-check convenience.
👉 Get the Airthings Wave Plus — use code RADONSAFETY-10OFF
#3 Best Non-Airthings Option: SunRADON Luft (~$199)
The SunRADON Luft comes from a company with deep roots in professional radon measurement — the same technology used by certified inspectors, adapted for consumer use. If you want to verify your Airthings reading with a second device, or simply prefer a non-Airthings product, the Luft is the strongest alternative.
Best for: Homeowners who want a second opinion sensor, or who prefer a brand with professional-grade credentials.
#4 Best Radon-Only Monitor: Airthings Wave Radon (~$140)
The Airthings Wave Radon does one thing: tracks radon continuously and reports it to your phone. Same wave-to-read LED as the Wave Plus. Same app. No extra sensors — and that’s the point. It’s the cleanest, lowest-cost entry into continuous radon monitoring.
Best for: Budget-focused homeowners who want ongoing radon data without paying for air quality features they won’t use.
👉 Get the Airthings Wave Radon — use code RADONSAFETY-10OFF
#5 Best Budget Pick: Airthings Corentium Home (~$109)
The Airthings Corentium Home has been the top-selling consumer radon detector for years. It’s as simple as it gets: a standalone device with a digital display showing 24-hour, 7-day, and long-term average radon readings. No Wi-Fi required (though Bluetooth app connectivity is available).
Best for: Homeowners who want reliable, plug-in radon monitoring without an app or internet connection. Also excellent as a second device in a different part of the house.
👉 Get the Airthings Corentium Home — use code RADONSAFETY-10OFF
Radon Monitor vs. Test Kit: Which Do You Actually Need?
- Buying or selling a home? Use a certified short-term test kit. Consumer monitors don’t meet state certification standards for real estate disclosures.
- Own your home and want ongoing monitoring? A continuous monitor is the right tool. You’ll see how radon fluctuates with weather, seasons, and HVAC cycles.
- Already tested above 4 pCi/L? Skip the monitor — get your home mitigated first. A monitor tracks levels; it doesn’t reduce them.
- Just moved in and want a baseline? Start with a test kit to establish your baseline, then consider a monitor for long-term tracking.
Your Radon Reading Is High — What Now?
The EPA recommends taking action at 4 pCi/L or above. If your monitor is consistently showing elevated levels, it’s time to talk to a certified radon mitigation contractor. Sub-slab depressurization systems typically cost $800–$1,500 and reduce radon by 80–99%. Most installs take one day.
We connect Maryland and Pennsylvania homeowners with certified, local professionals. One provider per lead — no spam, no competing calls.
Frequently Asked Questions
Airthings and SunRADON consumer monitors are independently validated and generally accurate to within ±10–15% of professional instruments over long-term averaging periods. For short-term spikes, professional testing is more precise — but for ongoing home monitoring, these devices are reliable.
Place your monitor in the lowest livable level of your home — typically the basement or first floor if you don’t have a basement. Keep it at breathing height (3–6 feet off the floor), away from exterior walls, windows, drafts, and HVAC vents. Avoid placing it in crawlspaces or unfinished utility areas.
No. Consumer monitors like Airthings do not meet EPA or state certification requirements for real estate transactions. If you’re buying or selling a home, you must use a certified short-term test kit or hire a certified inspector. Consumer monitors are for personal home monitoring only.
The EPA recommends considering mitigation between 2–4 pCi/L, and taking action at 4 pCi/L or above. The World Health Organization (WHO) recommends a lower threshold of 2.7 pCi/L. If your monitor reads consistently above 4 pCi/L, contact a certified radon mitigation contractor.
Consumer monitors like Airthings provide preliminary readings within 24 hours, but the most reliable readings come after 30–90 days of continuous monitoring. Radon levels fluctuate with weather, seasons, and barometric pressure, so long-term averages are more meaningful than short-term snapshots.