Airthings Electronic Radon Gas Detector

Airthings Electronic Radon Gas Detector

Corentium Home
Model: 223
Our Price: $149.99
In Stock - Expected To Ship On or before Wednesday, 12/07/2022
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The Corentium Home Digital Radon Detector by Airthings is a simple and easy to use radon gas detector. The Corentium Home was developed by in-house CERN scientists with the average homeowner in mind. It uses the same radon sensing technology that is found in professional grade products used by radon mitigators and home inspectors. Proven to be accurate for continuous monitoring of radon levels and has a large easy-to-read digital display. The display shows both short-term and long-term averages. Within 24 hours you will be able to view the first indication of your radon levels. The Corentium Home has unique enviromental auto-calibration technology and is battery operated with a 2-year battery life.

Please note that this detector should not be used as a substitute for performing a conventional radon test in your home, or for professional applications. The device is suitable for monitoring home radon levels only after an initial assessment has been performed using conventional test kits or by a radon professional. Further, periodic testing using conventional test kits should be done in conjunction with the detector to ensure it is working properly. Radon is odorless and colorless and there is no way to ensure the device is working properly without such cross checks. Please see our discounted test kit offer (above the "Add to Cart" button) to include a discounted conventional test kit with your order.

Attention Iowa Residents: Unfortunately we are not able to sell Radon Detectors to Iowa customers. Click here to view additional details. We apologize for the inconvenience.



Optional Charcoal Short Term Radon Test Kit at a Discounted Price

By taking advantage of our discounted short term test kit offer (above the "Add To Cart" button), you'll receive the detector and a conventional charcoal radon test kit for a great price. As explained above, the use of a conventional kit is recommended for initial radon assessments and on a periodic basis thereafter.

The discounted short term radon test kit remains in your home for three to seven days, providing an independent initial accurate reading of the radon level of your home. At the end of the radon gas test period, the test kit is sealed and sent to the laboratory in the pre-paid mailer for analysis.

Attention New Jersey Residents: Unfortunately we are not able to sell Radon Test Kits to New Jersey customers. Click here to view additional details. We apologize for the inconvenience.


The EPA Recommends the Following Testing Steps:

The amount of radon in the air is measured in "picoCuries per liter of air," or "pCi/L." Sometimes test results are expressed in Working Levels (WL) rather than picoCuries per liter (pCi/L) (4 pCi/L equals to 0.016 WL).

Using a short term charcoal radon test kit, if your result is 4 pCi/L or higher (0.02 Working Levels [WL] or higher) take a follow-up test (Step 2) to be sure.

Follow-up with either a long term test or a second short term test:

  • For a better understanding of your year-round average radon level, use a long term alpha track radon test kit.
  • If you need results quickly, use a second short term charcoal radon test kit.

The higher the result of your initial short term radon test kit, the more certain you can be that you should take another short term test rather than a long term follow-up test.

If your first short term test result is several times the action level - for example, about 10 pCi/L or higher - you should take a second short term test immediately.

If you followed up with a long term alpha track test kit: Fix your home if your long term test result is 4 pCi/L or more (0.02 Working Levels [WL] or higher).

If you followed up with a second short term radon test kit: The higher your short term results, the more certain you can be that you should fix your home. Consider fixing your home if the average of your first and second test is 4 pCi/L or higher (0.02 Working Levels [WL] or higher).

General EPA Recommendations Regarding Short Term Tests

  • Carefully follow the instructions that come with radon test kits.
  • Close your windows and outside doors and keep them closed as much as possible during the test.
  • Be sure to close your windows and outside doors at least 12 hours before beginning the test.
  • You should not conduct short term tests lasting just 4 or so days during unusually severe storms or periods of unusually high winds.
  • The test kit should be placed in the lowest lived-in level of the home (for example, the basement if it is frequently used, otherwise the first floor).
  • It should be put in a room that is used regularly (like a living room, playroom, den or bedroom) but not your kitchen or bathroom.
  • Place the kit at least 20 inches above the floor in a location where it won't be disturbed - away from drafts, high heat, high humidity, and exterior walls.
  • Do not disturb the test device at any time during the test.
  • Maintain closed-house conditions during the entire time of a short term test, especially for tests shorter than one week in length.
  • Operate the home's heating and cooling systems normally during the test. For tests lasting less than one week, operate only air-conditioning units which re-circulate interior air.
  • If a radon-reduction system is in place, make sure the system is working.
  • Once you are finished, follow the directions for sending the test back to the laboratory.
  • If an elevated level is found, fix the home. Contact a qualified radon-reduction contractor about lowering the radon level. EPA recommends that you fix the home when the radon level is 4 pCi/L or more.


Digital Radon Detector

  • Digital readout displays actual level of radon in the home in pCi/L
  • Provides a short-term average readout of the last 24 hours, last 7 days, and a long term cumulative average readout from the last reset for up to one year or from the day the batteries were installed for up to one year
  • Long term accuracy: After 7 days, within 10% and after 2 months, within 5% of actual radon levels
  • Samples air continuously
  • Sensor uses Ionization Chamber technology
  • Power requirements: 3 AAA alkaline batteries (Included)
  • 1 year manufacturer warranty

Charcoal Short Term Radon Test Kit

  • Highly proven over 2.0 million sold since it's development
  • Meets EPA radon proficiency program requirements
  • Laboratory analysis fees are included in purchase price (no hidden fees)
  • Very easy and simple to use
  • Fast, free shipping
  • Complete radon test report by fax, mail, or email
  • 3 to 7 day test (your choice)
  • Fast lab turnaround, the kits are processed the same day they are received
  • Pre-paid return mailer included


Average Customer Rating 4.8 5 stars (based on 13 reviews)

Displaying reviews 1-10 of 13
By Bob
From Winchester, VA
5 stars Good
Does what is expected
By Igor
From Saint Louis, MO
5 stars Good product.
I bought this Detector as an additional one. I already put one in the basement. I put this one in the bedroom. Both work perfect.
By Ed
From Higganum, CT
4 stars Good product
This is my second Airthings Corentium Digital Radon Detector. The last one lasted for a number of years and provided good service so I decided to buy another. Made an attempt to have the factory repair the first unit, but was a little disappointed in their communications methods and gave up. Would have given five stars if the factory was easier to work with. The unit it self does deserve five stars.
By Steve
From Butte, MT
5 stars Exactly what we needed!
This detector has brought us peace of mind having a reading for our 1st floor living area. We have a radon mitigation system in our basement, but it fluctuates in efficiency, so it's great to have an idea of what our levels are on a daily basis. Highly recommend!
By bill
From Loveland, OH
5 stars excellent, easy to read, great service
I found the radon meter very easy to use. I like the idea of privacy. They are my readings and if there are issues, I can tend to them.
By Yanni
From Flushing, NY
5 stars Great product
I came across the Airthings Corentium radon detector after doing some online research on detectors. It ranked in top 5 in many websites. Although hard to actually gauge its reading accuracy, it's working exactly as described. It is very easy to use and comes with batteries preinstalled. Engage the batteries and within 24 hours you have your first reading.
By Kate
From Dexter, MI
5 stars Confirmation of prior test.
I purchased this device after using another testing system as I wanted to verify the dreadful reading that test returned. While it did not solve my radon problem it did ease my mind about the decision to get an amelioration system installed.
By Luke
From Murfreesboro, TN
5 stars Works well so far
Accuracy is good. Short term readings closely match the results from a traditional short term test I had done. I expect this to be a very useful tool as I work to reduce radon levels in my home.
By Mitch
From Manchester, GA
5 stars Simple to use.
The unit is simple to use and seems to be working fine. I like the fact that is gives a daily reading as well as an average reading. Thanks for the quick delivery also.
By al
From philadelphia, PA
5 stars excellent product
I've had this running for almost two weeks and have gotten easy to read clear information. Very useful and very easy to use. Excellent product that I would highly recommend.

Why do I need to test for radon?

Radon comes from the natural (radioactive) breakdown of uranium in soil, rock, and water, entering the air you breathe. Radon is colorless and odorless. It can infiltrate any type of building - homes, offices, and schools - and build up to high levels. But you and your family will most likely receive your greatest exposure where you spend most of your time... your home.

It is estimated that radon causes many thousands of deaths each year because breathing air that contains radon can cause lung cancer. In fact, the Surgeon General has warned that radon is the second leading cause of lung cancer in the United States today. Only smoking causes more lung cancer deaths. If you smoke and your home has high radon levels, your risk of contracting lung cancer is especially high.

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