Review: Airthings Corentium Home 2 Radon Detector
When we think of an invisible, odorless, tasteless killer in the home, carbon monoxide (CO) comes to mind, but there is another danger that is often overlooked: radon.
In Canada, radon is the second leading cause of lung cancer, after smoking, and the number one cause among non-smokers. CO kills about 300 Canadians a year, while radon-induced lung cancer claims more than 3,200 lives, about eight a day.
“The problem is completely solvable and preventable,” says Dr. Aaron Goodarzi, Canada Research Chair in Radiation Exposure Diseases at the University of Calgary. “But people can’t be complacent.”
What is radon?
Radon is a naturally occurring radioactive gas that is produced when uranium in soil and rocks decays. Outside it disperses harmlessly. But when it seeps into homes through cracks, drains, or gaps around pipes, it can build up to dangerous levels.
Breathing radon means inhaling radioactive particles that damage lung cells. Over time, this can lead to lung cancer, often without warning.
Health Canada estimates that one in ten Canadian homes has radon above the recommended level of 200 Bq/m³ (becquerels per cubic meter). This means that Every second, 200 radon atoms decay in one cubic meter of air.. And although lower levels carry fewer risks, there really is no completely safe radon level.
Some parts of Canada have average indoor radon levels among the highest in the world, second only to Poland.
Why testing is important
Radon levels can vary drastically from home to home, even on the same street. Old or new, all homes are vulnerable; Because radon is invisible, the only way to know its level is to test it.
Homeowners have three main options:
• Professional testing – can be expensive and requires programming.
• Traditional Alpha Tracking Kits: Simple and inexpensive, these 90-day, single-use devices are mailed to a lab for analysis and provide only a snapshot.
• Digital monitoring: Devices like the new Airthings Corentium Home 2 offer continuous real-time readings and can be reused indefinitely.
While mail-in kits and professional services have their place, the Corentium Home 2 strikes the perfect balance between accuracy, affordability, and convenience. Unlike single-use kits, it continuously tracks radon over time. Unlike expensive professional services, this is a one-time investment with no recurring fees.
A smarter way to control radon
Airthings, a Norwegian leader in air quality monitoring, designed Corentium Home 2 to make testing simple, accurate and affordable. Based on the original model, it adds temperature and humidity tracking, enhanced Bluetooth LE, and optional SmartLink integration.
Unlike its predecessor and other detectors, it can also work completely independently, without the need for Wi-Fi, smartphone or app. Simply insert the two included AA batteries and let it run. At just 2.4 × 1.1 × 4.45 inches (61 × 29 × 113 mm) and 5.08 oz (144 g), it is compact and portable. The battery life is between 2 and 3 years.
Performance and precision
Corentium Home 2 starts collecting data right away, but needs about a week to stabilize its readings. This is because radon fluctuates throughout the day and the unit continually samples the air to calculate an accurate average. After the first week, readings are reliable within about 10% of lab results, improving to 5% after two months.
Because radon levels change with climate, ventilation, and seasons, Health Canada recommends testing for at least three monthsideally during the winter, when houses are sealed and pressure differences draw more radon out of the ground. Continuous monitoring captures these long-term variations, helping homeowners make informed decisions.
Continuous monitoring captures long-term variations, helping you understand patterns and make informed mitigation decisions.
Clear and actionable information
On its LCD screen you can see at a glance:
• Short and long term radon averages (1 day, 7 days, 30 days, 1 year)
• Temperature and humidity readings.
• A simple indicator Good / Fair / Bad
• Bluetooth and SmartLink connection status
Pair it with the free Airthings app to access interactive charts, historical trends, and personalized tips. The app also offers firmware updates to improve performance and allows for remote monitoring if you add an Airthings Hub or compatible View device.
Take action
If your long-term readings exceed 200 Bq/m³, as they did at my house, Health Canada recommends mitigation measures, such as sealing foundation cracks or installing a sub-slab depressurization system. Certified radon professionals can help determine the best approach.
Once mitigation is complete, Corentium Home 2 can verify the results over time, something disposable kits cannot do.
Cost and availability
The Airthings Corentium Home 2 sells for $249.99 CAD with a one-year warranty, extendable for free to 5 years if you register within 30 days. It is available through Airthings.com, Amazon, and other major retailers.
Final thoughts
Radon may be invisible, tasteless and odorless, but it is not undetectable. Awareness, measurement and action are the keys to protection.
Airthings Corentium Home 2, with its impressive balance of accuracy, portability and simplicity, helps make your testing easy and seamless. It is a great investment for the health of your home and your family.
Since November marks National Radon Action Month, there is no better time to test. Detecting and reducing radon is a small action that could make a difference in saving lives.
If you discover elevated levels, call a certified professional and download Health Canada’s free Radon Reduction Guide at Canada.ca/Radon.
Learn more about Airthings Corentium Home 2: https://www.airthings.com/en-ca/corentium-home-2-ca.
Read other articles in the Dangers of Radon series. https://troymedia.com/series/the-dangers-from-radon/
HIGHLIGHTS
Key Benefits: Why Airthings Corentium Home 2 Stands Out
• Continuous, real-time radon readings – see changes as they happen.
• Standalone operation: Works completely without an app.
• Tracks temperature and humidity for environmental context.
• Portable, battery powered and easy to move.
• No lab fees or recurring costs – one-time purchase for your continued peace of mind.
• Optional Bluetooth and SmartLink application integration for information and graphics.
The syndicated edition of the article will appear in Middle Troy and 32 affiliated syndicated sites.
Greg Gazinalso known as Gadget Guy and Gadget Greg, is a syndicated Veteran technology columnist, communication, leadership and technology speaker, facilitator, blogger, podcaster and author. reach it @gadgetgreg or in GadgetGuy.com.
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