AirThings vs Corentium: Which Continuous Radon Monitor Should You Buy?

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AirThings and Corentium have been the same company since 2017, when AirThings (a Norwegian smart-home IAQ specialist) acquired Corentium (a Norwegian radon-monitor specialist). The brands continue to coexist in the marketplace because retailers carry inventory under different SKUs, but the radon detection technology is shared across the consumer product line. Choosing between an AirThings View Plus, an AirThings View Radon, and a standalone Corentium Home is really a choice about how much IAQ data you want, what form factor you prefer, and how much you are willing to spend. This guide walks through the lineup and the right pick for different situations.

InspectandTest is an independent editorial team. We have not physically tested every product mentioned in this comparison; specific reviews on our site disclose which we have hands-on experience with and which we are evaluating from documented manufacturer specifications and consumer feedback. Pricing reflects May 2026 retail.

The product line, briefly

AirThings View Plus ($299): Premium continuous IAQ monitor measuring radon, PM2.5 particulate, CO2, total VOCs, humidity, temperature, and atmospheric pressure. E-ink display on the device, full phone app, smart-home API integration. Our full review of the View Plus.

AirThings View Radon ($179): The radon-focused sibling. Same radon detection technology as the View Plus, plus humidity and temperature only. Same app, same e-ink display, same smart-home integration. Replaces the older Wave Plus product line.

Corentium Home ($169 to $189): The standalone radon-only monitor sold under the original Corentium brand. Same radon detection as the AirThings line. Battery powered (3 AAA batteries, 18 months). Less polished app than the AirThings line; some retailers still carry it as a price-sensitive alternative to the View Radon.

AirThings Wave Plus / Wave Radon (legacy, discontinued or transitioning): Older product line replaced by the View Plus and View Radon. Used units circulate on the secondary market and remain functional for their rated calibration life (typically 7 to 10 years from manufacture). Buy new from current AirThings inventory rather than secondhand.

Head-to-head comparison

How to choose

If you want broadest IAQ coverage in one device, View Plus. $299 buys you radon plus six other parameters with a polished app and smart-home integration. The right choice for households that care about indoor air quality holistically: PM2.5 for wildfire smoke or respiratory sensitivities, CO2 for ventilation tuning, VOCs for off-gassing tracking after renovations or new furniture.

If you only care about radon, View Radon. $179 buys you the same radon accuracy as the View Plus, with the same polished app and smart-home integration, just without the additional sensors. For households where radon is the only concern (which is most Front Range Colorado homeowners), the View Radon is the better-value choice. The $120 saved is real money.

If you want the lowest-priced credible option, Corentium Home. $169 puts a competent radon monitor in your home. The trade-offs are a less polished app, somewhat shorter calibrated lifetime (7 vs 10 years), and less smart-home flexibility. For homeowners who just want a reliable radon reading and do not care about app polish or smart-home integration, the Corentium Home does the job.

Edge cases and special situations

For real estate transactions: use a short-term DIY charcoal kit ($15 to $30) or hire a state-certified measurement professional with documented chain of custody. Continuous monitors are excellent for ongoing visibility but contractual radon-test requirements often specify short-term protocols.

For post-mitigation verification: any of the three monitors works, but the View Radon’s polished app makes the post-mitigation trend graph more compelling than the Corentium Home’s. The View Plus is overkill for this purpose.

For multi-property monitoring: the AirThings dashboard supports multiple devices in one account. Property managers and real estate investors with multiple homes can run a fleet of View Radons (one per property) and monitor all of them in a single app.

For working home inspectors: the View Plus is the standard pick because it gives you talk-tracks beyond radon during client visits (you can show particulate, CO2, and VOC readings during the inspection walk-through). The IAQ data is part of the deliverable, not just the radon number.

Setup and placement (same for all three)

1. Place the device in the lowest occupied level of the home, 20+ inches off the floor.
2. Away from drafts (open windows, exterior doors), HVAC registers, and exterior walls.
3. Pair with the appropriate phone app (AirThings or Corentium); follow the in-app setup wizard.
4. Wait 7 days for the first reliable averaging window. Earlier readings are valid but have higher measurement uncertainty.
5. Check daily, weekly, and monthly averages in the app. Set alerts for levels above 2.0 pCi/L (conservative) or 4.0 pCi/L (EPA action level).
6. Mark the install date on a sticker on the device. Plan replacement at the rated calibration life.

Verdict

For most Front Range Colorado homeowners, the AirThings View Radon at $179 is the right starting point. It hits the right balance of accuracy, app quality, smart-home integration, and price. Step up to the View Plus if you want the broader IAQ data and can justify the $120 premium. Step down to the Corentium Home if budget is the deciding factor and you do not need app polish. All three give you the same radon answer.

References

• A Citizen’s Guide to Radon — U.S. Environmental Protection Agency
• EPA Map of Radon Zones
• Radon in Colorado — Colorado Department of Public Health and Environment
• American Association of Radon Scientists and Technologists (AARST)
• National Radon Proficiency Program (NRPP)

Continuous radon detectors

A digital monitor gives you an always-on reading and a long-term average — better than a one-shot kit if you want to track levels over time.

Product	Why	Buy
Airthings Corentium Home	Battery, portable; trusted long-term average.	Amazon — $147.50
Ecosense RadonEye RD200	Fast first reading (~1 hr); app logging.	Amazon — $169.00
Airthings View Plus	Radon + CO2 + PM + VOC in one unit.	Amazon — $329.99

Prices and availability are accurate as of July 30, 2026 and are subject to change. Product data via the Amazon Product Advertising API.

We may earn commission from links on this page. Lead-form submissions are forwarded to local inspector partners. How we research and review.