Airthings Corentium Home Digital Radon Detector

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Airthings Corentium Home Digital Radon Detector

January is National Radon Action Month. EPA and the U.S. Surgeon General recommend that all homes in the U.S. be tested for radon. Montgomery County, Maryland has been designated as a Zone 1 area which means there is a predicted average radon level at or above the EPA's 4.0 pico-Curies per liter (pCi/L) action level. (pCi/L is a measure of the amount of radioactivity in a known quantity of air.)  

I purchased a Airthings Corentium Home Digital Radon Detector for our home. It is an easy to use device for home use. "The top rated and best selling digital radon detector on the market. Easily monitor radon levels in your home with this compact yet powerful radon gas detector." 

The Airthings price is $179.99. I purchased it on Amazon for $135.90 with free shipping. The AAA batteries are included with the device.

About this item

  • FIRST OF ITS KIND: The first battery-operated, digital radon detector. Monitor your home without the need for an outlet.
  • LONG TERM MONITORING: Monitor for cancer-causing radon gas. Long term monitoring is necessary as radon levels fluctuate daily.
  • BE IN CONTROL: Take action if your radon levels are high. Know if your improvements have worked by checking the short term, on-screen readings.
  • RADON REPORT: Generate a radon self-inspection report easily, whenever you need it.
  • FAST RESULTS: On-screen results show both long and short term readings, for a quick overview of your radon levels.


You can’t see, smell or taste radon, but it could be present at a dangerous level in your home. Radon is the leading cause of lung cancer deaths among nonsmokers in America and claims the lives of about 21,000 Americans each year. In fact, the EPA and the U.S. Surgeon General urge all Americans to protect their health by testing their homes, schools and other buildings for radon.

Exposure to radon is a preventable health risk and testing radon levels in your home can help prevent unnecessary exposure. If a high radon level is detected in your home, you can take steps to fix the problem to protect yourself and your family. EPA


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Photograph by Roy Kelley

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Posted by

Roy Kelley, Associate Broker

Realty Group Referrals (Retired from RE/MAX Realty Group)

6 Montgomery Village Ave., Suite 200, Gaithersburg, MD 20879

Office:  301-258-7757 

Comments (15)

Wayne Martin
Wayne M Martin - Chicago, IL
Real Estate Broker - Retired

Good morning Roy.if you are in an area prone to high radon levels, a device of this type is essential. The variance in daily rates could be an indicator that remediation is necessary. Enjoy your day 

Jan 19, 2022 03:46 AM
Lawrence "Larry" & Sheila Agranoff. Cell: 631-805-4400
The Top Team @ Charles Rutenberg Realty 255 Executive Dr, Plainview NY 11803 - Plainview, NY
Long Island Condo and Home Specialists

Roy, We don't have this concern where we live, and many out-of-state buyers are surprised that they don't need a Radon test to buy a home here.

Jan 19, 2022 05:20 AM
Bill Salvatore - East Valley
Arizona Elite Properties - Chandler, AZ
Realtor - 602-999-0952 / em:

Good Wednesday morning, Roy.

Have a great day, make it productive and an outstanding week. bill

Jan 19, 2022 05:42 AM
Grant Schneider
Performance Development Strategies - Armonk, NY
Your Coach Helping You Create Successful Outcomes

Good morning Roy - thank you for sharing the information.  I will certainly check this one out.

Jan 19, 2022 06:16 AM
Bob "RealMan" Timm
Ward County Notary Services - Minot, ND
Owner of Ward Co Notary Services retired RE Broker

I had never seen one with a readable gauge Roy Kelley and I really like it. The entire State of ND is very high in Radon levels so I will be checking into this.

Jan 19, 2022 06:28 AM
Nina Hollander, Broker
Coldwell Banker Realty - Charlotte, NC
Your Greater Charlotte Realtor

Good morning, Roy... this is not an expensive investment for something that can kill you. Thanks for sharing your information.

Jan 19, 2022 06:29 AM
Roy Kelley
Realty Group Referrals - Gaithersburg, MD

Bob "RealMan" Timm 

Let us know which device you select. I like the fact that this one is battery operated which makes it easy to place anywhere. The batteries are supposed to last about two years.

Jan 19, 2022 06:35 AM
Joan Cox
House to Home, Inc. - Denver Real Estate - 720-231-6373 - Denver, CO
Denver Real Estate - Selling One Home at a Time

Roy, good job, and had no idea there was a detector you could buy at the store.

Jan 19, 2022 07:23 AM
Myrl Jeffcoat
Sacramento, CA
Greater Sacramento Realtor - Retired

Sacramento doesn't have a lot of radon.  However, having homes tested and having a radon detector is still a good idea.

Jan 20, 2022 02:25 PM
Roy Kelley
Realty Group Referrals - Gaithersburg, MD

Thank you very much for your comments. It is always good to hear from you.

Jan 24, 2022 07:40 AM