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Airthings Corentium Home 2 vs. View Radon vs. View Plus

All three are consumer digital radon monitors: they measure radon continuously while they have power, so you can watch levels change.⁠1 They don’t replace a lab test. CRCPD says to verify a consumer monitor’s results with an approved test, and never to use one in a real estate transaction.⁠2

Vermont Radon earns a commission if you buy through our Airthings links, at no extra cost to you. We haven’t tested these monitors; everything below is Airthings’ own published information or official guidance. How we make money

Side by side

As listed by AirthingsCorentium Home 2View RadonView Plus
Price at Airthings$179.99, checked Oct 17, 2026⁠3$219.99, checked Oct 17, 2026⁠4$329.99, checked Oct 17, 2026⁠5
MeasuresRadon, temperature and relative humidity⁠3Radon, humidity and temperature⁠4Radon, PM2.5, CO2, temperature, humidity, airborne chemicals (VOCs) and air pressure⁠5
DisplayOn-device screen; after 30 days, 24-hour, 7-day, 30-day and long-term radon averages⁠32.9-inch ePaper⁠42.9-inch ePaper⁠5
Power2 AA batteries, up to 3 years⁠36 AA batteries or USB cable⁠46 AA batteries or USB-C, up to 2 years⁠5
ConnectionBluetooth with the Airthings app; works standalone with no wireless⁠3Wi-Fi, Airthings SmartLink and Bluetooth⁠4Wi-Fi, Airthings SmartLink and Bluetooth⁠5
Accuracy Airthings statesWithin 10%: 4 days at 10 pCi/L, 7 days at 5.4 pCi/L⁠3At 5.4 pCi/L: about 10% after 7 days, about 5% after 2 months⁠4At 5.4 pCi/L: about 10% after 7 days, about 5% after 2 months⁠5
Radon range0 to 250 pCi/L⁠30 to 500 pCi/L⁠40 to 500 pCi/L⁠5

Specs as listed on each Airthings product page, checked October 17, 2026. Prices change; check at Airthings.

Which fits what you want

  • Corentium Home 2: if you want a simple battery device that shows radon averages on its own screen. Airthings says it can be used as a standalone device without any wireless connectivity.⁠3
  • View Radon: if you want to check readings in the Airthings app over Wi-Fi, on a larger ePaper display.⁠4
  • View Plus: if you also want particulate matter (PM2.5), carbon dioxide, airborne chemicals and air pressure, along with radon.⁠5

What official sources say about all three

  • CRCPD: the accuracy and reliability of consumer digital radon monitors have not been verified by an independent third party, and results may be higher or lower than actual radon levels.⁠2
  • CRCPD: they are not for making radon mitigation decisions; long-term testing is advised for that.⁠2
  • CRCPD: because monitors may lose accuracy over time, verify radon levels periodically using an approved method.⁠2
  • Professional listings: as of October 17, 2026, NRPP’s and NRSB’s approved-device lists include Airthings’ Corentium Pro, not these three consumer models.⁠67

Start with the lab test, add a monitor if you like

Order the Health Department Lab’s long-term kit for $25⁠8 and leave it in place for 3 to 12 months, ideally including a heating season.⁠9

Want to see levels day to day? A digital monitor measures and records radon continuously while it has power.⁠1 Use it alongside the lab test, not instead of it: CRCPD says to check a consumer monitor’s results with an approved test.⁠10

Order the $25 long-term kit See Airthings monitors Affiliate link

If you buy through the Airthings link, Vermont Radon may earn a commission at no extra cost to you. How we make money

Enter vtradon-10OFF for 10% off at checkout. Airthings ships only within the US.

The state lab kit is not an affiliate link. To order by phone, call 802-338-4736 or 800-660-9997.⁠9

Common questions

What’s the difference between the Airthings Corentium Home 2 and View Radon?

The Corentium Home 2 runs on 2 AA batteries, shows radon averages on its own screen and can be used without any wireless connection.⁠3 The View Radon has a 2.9-inch ePaper display and connects over Wi-Fi.⁠4

Can I use an Airthings monitor for a home sale?

CRCPD says consumer digital radon monitors should never be used in real estate transactions.⁠2

Are Airthings consumer monitors certified for professional use?

As of October 17, 2026, the NRPP and NRSB approved-device lists include Airthings’ Corentium Pro, not the Corentium Home 2, View Radon or View Plus.⁠67

Last reviewed How we source facts

Sources

10 official sources
  1. U.S. Environmental Protection Agency. Home Buyer’s and Seller’s Guide to Radon (EPA 402/K-24/001, March 2024). Checked 2026-10-17. ↩
  2. Conference of Radiation Control Program Directors (CRCPD). Advisory: Radon Testing with Consumer Digital Radon Monitors (CRCPD Publication 25-4). Checked 2026-10-17. ↩
  3. Airthings. Corentium Home 2 (product page). Checked 2026-10-17. ↩
  4. Airthings. View Radon (product page). Checked 2026-10-17. ↩
  5. Airthings. View Plus (product page). Checked 2026-10-17. ↩
  6. National Radon Proficiency Program (NRPP). NRPP Approved Devices (continuous radon monitors list updated October 17, 2026). Checked 2026-10-17. ↩
  7. National Radon Safety Board (NRSB). NRSB Approved Devices (July 2026). Checked 2026-10-17. ↩
  8. Vermont Department of Health Laboratory. Radon Test Kits (Health Department Lab webstore). Checked 2026-10-17. ↩
  9. Vermont Department of Health. Radon in Your Home. Checked 2026-10-17. ↩
  10. Conference of Radiation Control Program Directors (CRCPD). Consumer Digital Radon Monitors (CRCPD guidance, reprinted in The Radon Reporter, Q4 2025, p. 39). Checked 2026-10-17. ↩

A radon reminder each fall