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Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
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Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
Brand | Airthings |
Style | Corentium Home Radon |
Power Source | Battery Powered |
Color | black |
Product Dimensions | 1"D x 2.7"W x 4.7"H |
Item Weight | 3.52 ounces |
Alarm | Audible, Visual |
Operating Humidity | 95 percent |
Upper Temperature Rating | 104 Degrees Fahrenheit |
Sensor Type | radon detector |
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.
Frequently bought together
Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 1 x 2.7 x 4.7 inches; 3.52 ounces
- Item model number : 223
- Batteries : 1 AA batteries required. (included)
- Date First Available : December 3, 2013
- Manufacturer : Airthings
- ASIN : B00H2VOSP8
- Country of Origin : Norway
- Best Sellers Rank: #3,768 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
- #4 in Gas Detectors & Alarms
- Customer Reviews:
Product Description
The Corentium Home by Airthings radon detector is a state-of-the-art measuring instrument that combines ease of use and performance. The Corentium Home by Airthings radon gas detector allows you to take a reading of the radon levels and its LCD screen displays the average daily, weekly and long term concentrations. Powered by 3 standard AAA batteries, the radon monitor makes it easy to take measurements from one room to another in order to get an overview of the concentrations of radon in a home, workplace, school, a daycare centre or any other location. The Corentium Home by Airthings radon detector is also an essential tool to use when performing property inspections or when checking the operation of a radon mitigation system. The internal architecture of the Corentium Home by Airthings radon monitor comes from advanced technology normally reserved for commercial-type detectors. Particular attention has been paid to the quality and protection of the internal components, allowing the use of algorithms for signal analysis that are more sophisticated. The Corentium Home by Airthings radon gas detector quickly adapts to its environment and eliminates inaccuracies related to external factors, allowing it to obtain the best accuracy in its niche. it requires no annual calibrations throughout its useful life, estimated at over 10 years.
From the brand
From the manufacturer
Corentium Home: Long and short term trends help you stay on top of radon levels.
What is radon and why is it dangerous?
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Monitor your air quality.Radon gas is in the air all around us and levels fluctuate daily. The good news is that a digital radon detector warns you when levels are getting high. Simple fixes around the home can dramatically improve your air such as increasing ventilation or sealing cracks in floors or even installing radon mitigation systems and radon fans. |
Continuous, long-term monitoring21,000 deaths are attributed annually to radon gas in the US alone. This and other radon side effects can be prevented by monitoring. Remember to monitor for radon daily so that you can make small adjustments to improve the quality of your air. |
Odorless, colorless, tastelessRadon is a naturally occurring, radioactive gas that comes up from the ground and can accumulate to unsafe levels in the home. It is odorless, colorless and tasteless. |
Should you measure radon when you buy or sell your home?You’ve heard that the EPA says that if you are buying or selling a home, you should have it tested for radon. In the US there is often a legal obligation to monitor radon for 48 hours before selling property. There are benefits to consider the wider impact of radon and the overall importance of indoor air quality. |
What are the benefits of the Corentium Home?
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Quick.See the first indication of your radon levels within 24 hours. Nothing to send to a lab and no fees. Accuracy improves with time: after 7 days, within 10% and after 2 months, within 5% of actual radon levels. Easily reset your device to test a different room. |
Simple.The first battery-operated digital radon detector can be placed anywhere in your home. The batteries last up to two years, making it easy to radon test every room of your home. |
Accurate.Developed by our in-house Norwegian CERN particle physicists, our state-of-the-art radon testing sensor is incredibly accurate. Get meaningful results with continuous monitoring for short and long term averages. |
Radon levels fluctuate daily.Peace of mind with daily monitoring: See both long and short term levels to make the right changes for your home. Generate a radon report as evidence for low levels when selling your home. |
Corentium Home | Wave Radon | View Radon | View Plus | |
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Customer Reviews |
4.6 out of 5 stars
10,007
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4.5 out of 5 stars
1,858
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4.3 out of 5 stars
319
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4.0 out of 5 stars
1,214
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Price | $144.50$144.50 | $143.99$143.99 | $189.70$189.70 | $299.00$299.00 |
Radon sensor | ✓ | ✓ | ✓ | ✓ |
Temperature & Humidity | ✓ | ✓ | ✓ | |
Air Quality (CO2, PM, VOCs, and more) | ✓ | |||
Free App & Dashboard | ✓ | ✓ | ✓ | |
Bluetooth | ✓ | |||
WiFi (remote access to data) | ✓ | ✓ |
What's in the box
Product guides and documents
Videos
Videos for this product
2:41
Click to play video
COMPARED RadonEye vs Airthings Radon Testers #thisorthat
Frugal Repair
Videos for this product
2:15
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Review of the Home Radon Detector
✅️ Reviews by the Pardine Family ✅️
Videos for this product
1:36
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9 month check in with the Airthings Radon detector.
Influencer Video
Videos for this product
1:46
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Just as Important as Smoke Alarms, Radon Detector
✅ GearChase.com
Videos for this product
1:25
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Pros and Cons - Airthings Corentium Home Radon Detector
Liam O'Niel
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the gas smoke fire alarm for its informative readouts. They say it performs well, is easy to set up and use, and provides a short-term and long-term perspective. They also appreciate the value for money, saying it's a small investment to buy piece of mind. Customers also like the length of the readings, saying they can be taken daily, weekly, and long term. They like the simple design and implementation.
AI-generated from the text of customer reviews
Customers like the quality of the gas smoke fire alarm. They say it performs well, has no problems, and is easy to use. They also say the results are clear and easy to read. Customers also say it's reliable and foolproof.
"...I also like how simple this device us, it's foolproof...." Read more
"...I am very happy with both units. No problems - I lent one out to my daughter for a few months...." Read more
"Well made and packaged. Clear screen. I like the dual readings of four single day readings, plus a long term reading...." Read more
"...tests are very close to each other and therefore probably a reliable test (i.e. repeated testing yields values close in value to each other) and are..." Read more
Customers find the gas smoke fire alarm easy to set up and use. They say it's simple in design and implementation. Customers also say it doesn't need setup, pairing, or attention. They mention that the radon detector seems to be reading out pretty accurately.
"...I also like how simple this device us, it's foolproof...." Read more
"Well made and packaged. Clear screen. I like the dual readings of four single day readings, plus a long term reading...." Read more
"...Things we liked:* Very easy to use, basically just put in the batteries and go...." Read more
"...in addition to the daily amount of radon detected and is very easy to read...." Read more
Customers like the accuracy of the gas smoke fire alarm. They say it's very accurate, user friendly, and provides reasonable readings similar to a professional test. Some customers also mention that the readings are very low.
"...I've found the Airthings device to be quite accurate, nearly matching the 2-week results from an independent test using two Sun Nuclear radon..." Read more
"...and did the math, as I have, you would see that it is quite accurate for an inexpensive radon continuous monitoring device.... and way more than..." Read more
"...and then even when moved to a drier location, will give subsequent inaccurate low readings...." Read more
"...It is much more accurate than the common short term testing, since radon levels fluctuate with the weather...." Read more
Customers like the value of the gas smoke fire alarm. They say it's well worth the price, a perpetual money-saver, and a small investment to buy piece of mind. Customers are also surprised that the readings were back on the money.
"...if a charcoal test makes you want further testing, and it is well worth the price...." Read more
"...are extraordinary for a low priced unit...." Read more
"...Price is very reasonable considering the use we have made of them...." Read more
"...Happy to learn ours is not, worth the piece of mind. Well rated on this website" Read more
Customers like the radon levels. They mention that it's a very good tool to monitor radones, and easy to use. They say it'll start to track radomes right away, and is excellent for long-term monitoring. They also say it is an eye opening device to spot-check and monitor radines, as it gives both short and long- term readings.
"This device gives cumulative data over months, as well as a weekly average, in addition to the daily amount of radon detected and is very easy to..." Read more
"The device seems to accurately detect radon as a 24 hour, weekly, and long term average...." Read more
"Useful homeowner test device; of course, for higher values better to get a professional test." Read more
"It has a running average of radon displayed, as well as daily average. Just turn it on and leave it." Read more
Customers find the readings provided by the gas smoke fire alarm to be informative, accurate, and consistent. They also say it provides piece of mind and toggles between a daily reading and the weekly average. Customers also mention that the product is easy to use and provides a contemporaneous, daily, and extended reading.
"Well made and packaged. Clear screen. I like the dual readings of four single day readings, plus a long term reading...." Read more
"...It has been extremely useful bringing awareness to an important aspect of air quality in our homes." Read more
"Super easy to set up, read, move to different areas of house. Performs well, small and discreet looking." Read more
"...It is a great device to spot-check and monitor radon. It gives a daily reading, short-term daily average reading and long-term average reading...." Read more
Customers like the length of the gas smoke fire alarm. They say it gives a long-term average, and provides a short-term and long- term perspective. Some mention that the life is fairly long and the unit will have a reasonable life.
"...charcoal test you mail in, this unit give real time readings and long term readings and it seems to be accurate by my lending to others to check..." Read more
"...Appears to be averaging correctly for long term reading. It's been on continuously for a month now, with no battery issues...." Read more
"...You can actually see it fluctuate up and down and it gives you a long term average too...." Read more
"...(It also displays a 7-day rolling average and the Average-Since-Reset.)..." Read more
Customers are satisfied with the performance of the gas smoke fire alarm. They mention that it gives first readings very quickly, it displays results instantly as soon as it has been running long enough, and that it provides quick feedback and response. Some say that the product is easy to set up and can be up and running in seconds.
"...I like how quickly I can get results...." Read more
"...The quick feedback and response we found helpful.*..." Read more
"This device works great and is giving the correct reading which matched the charcoal canister reading...." Read more
"...Also, I am able to change the fan speed on the system and I have been able to determine that I need to run about 80% to be effective...." Read more
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That freaked me out, and I wanted to quick answers, so I bought this Airthings radon detector from Amazon and had it the next day. It confirmed that our levels were higher than they should be. Further, it also revealed our levels were above safe limits even on the floor above the basement. I'm so glad we didn't have to wait for another charcoal test.
A few days later, we had a radon system installed that basically sucks the radon out of the ground, underneath the crawlspace and concrete basement floor. This was a year ago and it has been very effective, reducing our radon levels down to a 1-year average of ~1.3 pCi/L.
I've found the Airthings device to be quite accurate, nearly matching the 2-week results from an independent test using two Sun Nuclear radon testing devices.
I like how quickly I can get results. For instance, I recently found that opening windows on the top level of our house causes radon levels to increase in the basement (to ~3-4 pCi/L), and this happens due to a chimney effect creating negative pressure in the house, causing it to draw more radon out of the ground. I also learned that I could prevent the negative pressure by also opening windows on the lower level of the house. If I didn't have the Airthings device, I would not be able to tell how these kinds of changes affect radon levels.
For any kind of test like this, it's important to give it some time (a day or two minimum), as radon levels naturally increase and decrease all the time, so you can only trust longer term averages. And the longer the test, the more accurate the number. The Airthings device doesn't give you minute-by-minute readings for this reason. Instead, it gives you, short term 24-hour, 7-day, and long term averages, which is ideal.
I also like how simple this device us, it's foolproof. There's really nothing for you to do other than finding a good place to put it, and reading its screen. There are no buttons (unless you count the tiny reset button on the back, which you may never use).
It shows you the 1-day, 7-day and long-term averages by rotating the numbers every few seconds on the screen. The batteries last a really long time. We've been running the device on the original batteries nonstop for over a year, with no sign of slowing down.
Lastly, I also like that you can easily test different places in your house, or even different houses (we recently tested my parents house). It would be a pain to do this with charcoal tests.
I highly recommend this device, especially if a charcoal test makes you want further testing, and it is well worth the price. I can't think of any downsides and I will never be without one of these devices.
Reviewed in the United States on October 4, 2023
That freaked me out, and I wanted to quick answers, so I bought this Airthings radon detector from Amazon and had it the next day. It confirmed that our levels were higher than they should be. Further, it also revealed our levels were above safe limits even on the floor above the basement. I'm so glad we didn't have to wait for another charcoal test.
A few days later, we had a radon system installed that basically sucks the radon out of the ground, underneath the crawlspace and concrete basement floor. This was a year ago and it has been very effective, reducing our radon levels down to a 1-year average of ~1.3 pCi/L.
I've found the Airthings device to be quite accurate, nearly matching the 2-week results from an independent test using two Sun Nuclear radon testing devices.
I like how quickly I can get results. For instance, I recently found that opening windows on the top level of our house causes radon levels to increase in the basement (to ~3-4 pCi/L), and this happens due to a chimney effect creating negative pressure in the house, causing it to draw more radon out of the ground. I also learned that I could prevent the negative pressure by also opening windows on the lower level of the house. If I didn't have the Airthings device, I would not be able to tell how these kinds of changes affect radon levels.
For any kind of test like this, it's important to give it some time (a day or two minimum), as radon levels naturally increase and decrease all the time, so you can only trust longer term averages. And the longer the test, the more accurate the number. The Airthings device doesn't give you minute-by-minute readings for this reason. Instead, it gives you, short term 24-hour, 7-day, and long term averages, which is ideal.
I also like how simple this device us, it's foolproof. There's really nothing for you to do other than finding a good place to put it, and reading its screen. There are no buttons (unless you count the tiny reset button on the back, which you may never use).
It shows you the 1-day, 7-day and long-term averages by rotating the numbers every few seconds on the screen. The batteries last a really long time. We've been running the device on the original batteries nonstop for over a year, with no sign of slowing down.
Lastly, I also like that you can easily test different places in your house, or even different houses (we recently tested my parents house). It would be a pain to do this with charcoal tests.
I highly recommend this device, especially if a charcoal test makes you want further testing, and it is well worth the price. I can't think of any downsides and I will never be without one of these devices.
Now to its accuracy. The Corentium 223 specification is perhaps the most honest approach to accuracy I have ever seen in a consumer product. It’s based on: ‘sigma = less than [a percentage and the length of test]. It is statistical probability specification of accuracy and it is rich in accuracy information. However, you need to do the math, understand what ‘sigma’ means in variance statistics, understand probability distribution curves, and then the use the spec to calculate the worst case accuracy of the device associated with your own radon situation). So, please do that before you criticize the device. If you studied the specification and did the math, as I have, you would see that it is quite accurate for an inexpensive radon continuous monitoring device.... and way more than suitable for home use.
Let me repeat that again. If you use the device as instructed by the manufacturer and are willing to trust the specification as determined by some very smart people who spent a lot of time, money and brainpower to prepare it, then you will be measuring Radon and its variability in your home in a way that is vastly superior to doing periodic mail away tests.
The radon in your home varies from day to day, month to month, hour to hour. The anecdotal ‘evidence of accuracy’ presented in virtually all of these reviews is absolutely without merit. Why, because determining the accuracy of the device against a standard source is extremely complicated. As a chemist I know that for a fact. We, as customers, do not have the time, money, equipment, or knowledge to do it - period. If you are somehow guessing that you need better accuracy in a shorter period of testing then please consider buying the Corentium pro for $1200 or perhaps some other professional device. You may not get better accuracy but you will likely get equivalent accuracy in a shorter period of time.... that’s how the statistics work. Please read the last two sentences again.
Consider this too. The manufacturer, Air Things, is based in Europe and it appears to be a spin off of CERN in Geneva, Switzerland. Look up CERN in Wiki. You will be impressed. They are the world’s leading experts on making and measuring radiation. I am impressed because their ‘no calibration necessary’ technology for this device (and their more expensive professional models) seems to be the result of a micro miniaturized, more precise spectroscopic technology for measuring radioactive decay of radon daughters alpha particle emissions.
Finally, I’ve read literally hundreds of these Amazon reviews where accuracy is mentioned... and actually is somehow mysteriously determined in the basement of their home. However, I’ve not seen one review that references the manufacturer’s specification. Everyone here that’s comparing ‘this to that’ or ‘that to this’ and making claims about ‘accuracy’ doesn’t have a clue what they are talking about. However, a number of thoughtful reviewers seem to have run side by side tests with other devices or mail away canisters. Assuming those tests were done properly, then they can be considered slightly helpful but otherwise of no use in determining the device’s accuracy.
I’m going by the specification. I’m confident in my device and am very relieved that I own one.
—- UPDATE: April 28, 2021 I bought a second unit a couple months after purchasing the first, so both are now over two years old. I am very happy with both units. No problems - I lent one out to my daughter for a few months. Now I keep one in the basement and the other on the first floor. I recently replaced the batteries in the first unit (a two year battery life - just like the manufacturer said) and have had no problems at all with either unit.
Regarding Accuracy - I am reiterating that the Airthings accuracy specifications (which result from the highly advanced ‘spectroscopic’ technology behind it) are extraordinary for a low priced unit. Don’t believe the misinformation from reviewers here who claim to have determined the ‘accuracy’ of their Airthings unit as bad or good by running some kind of ‘test’. You/ Me / Other Reviewers / cannot in any way determine the accuracy of any type of radon device or test kit on the market - not for any device - not for any manufacturer). Period.
The only choice you have for determining the accuracy of any device you buy is to trust the manufacturer, the manufacturer’s statistical process control, and that the manufacturer truly, deeply understands the extremely complex issues in radon measurement. The Airthings company was founded by CERN scientists. CERN is where many of the smartest on this planet create and measure radiation with the Large Hadron Collider (LHC). So... I trust the Airthings accuracy specification.
So - If you really want to know the accuracy of any type of any radon monitoring detector you purchase (regardless of the manufacturer), here is what I would recommend so as to get decent accuracy results.
- identify an analytical laboratory highly specialized and experienced in the many complexities of radon measurement
- ensure that it is a laboratory using standards and equipment based on measuring radon in the atomic form(s) in which it is most carcinogenic,
- send them your device and have it tested under tightly controlled laboratory conditions for a period of time (that is dependent on the rate at which that particular device model approaches the true radon value).
For me, buying two of the Airthings devices was an easy decision once I researched and understood the issues in Radon measurement, and the various devices available.
As I said previously, I have no affiliation of any kind with this company, but I do get frustrated when reviewers who have no clue what they are talking about provide horrible misinformation for the rest of us.