Best Radon Detectors for Canadian Homes
Health Canada's guideline is a 91-day test, not a 5-minute reading — these four options actually meet that bar, from a $55 lab-analyzed kit to a $380 whole-home monitor.
Most "best radon detector" round-ups are written for a US audience and skip the one thing that actually matters here: Health Canada's guideline is built around a 91-day test, not a 5-minute reading, and the action level is 200 Bq/m³ — a different unit than the pCi/L figure most American sites quote. Our Home Safety Checklist covers the why and when of radon testing in more depth; this page is about which device actually gets you a result Health Canada would call valid.
What Health Canada actually requires
- Test for a minimum of 91 days — Health Canada's cutoff for a valid estimate of your average annual radon level
- Test during fall or winter, when the home is closed up and radon concentrates highest indoors
- Place the device in the lowest level you spend at least 4 hours a day in — not a level you never use
- Take action if your result is at or above 200 Bq/m³; Health Canada also flags 100–200 Bq/m³ as worth acting on where practical
A device that only shows a same-day or same-week number can't meet that bar on its own — you need it running for the full 91+ days regardless of which one you buy.
The 4 options
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AccuStar Canada Alpha Track Long-Term Radon Test Kit
A passive, lab-analyzed test kit built specifically for Canadians — results in Bq/m³, exposed for Health Canada's own recommended 91-day-to-12-month window, then mailed to a lab.
- No electronics, no batteries — just place it and mail it back after 91+ days
- Lab analysis included in the price; results emailed once processed
- Cheapest way to get a genuinely Health Canada-compliant long-term result
- The type of result most likely to be accepted for real estate or insurance documentation
Airthings Corentium Home 2
The digital monitor most people mean when they say "radon detector" — Bluetooth-only (no hub or WiFi needed), with the same sensor accuracy as the original Corentium Home plus temperature and humidity tracking.
- Battery-powered, no subscription or hub required
- Syncs to the Airthings app over Bluetooth for historical data and trend graphs
- Give it the same 91+ days for an accurate long-term reading, not a same-day number
- Reusable — keep monitoring year-round after the first test instead of buying a new kit
Ecosense EcoQube
A C-NRPP-approved continuous monitor built for higher sensitivity to hour-to-hour radon swings, with WiFi-based remote trend charts through the Ecosense app.
- C-NRPP approved — the Canadian certification relevant for real estate and professional use
- Captures fluctuations faster than simpler semiconductor-based monitors
- Needs a 2.4 GHz WiFi connection for remote data access
- Good fit if you want to watch levels change through the seasons, not just get one number
Airthings View Plus
Radon is one of seven things this monitors — it also tracks PM2.5, CO2, VOCs, temperature, humidity, and air pressure, for households that want one device instead of several.
- Covers radon plus the air-quality metrics that matter for a tight, well-sealed newer home
- WiFi-connected with 24/7 cloud access to your data, no separate hub needed for the standalone unit
- The highest price on this list — worth it only if you want the other five sensors too
- Comes with a 5-year extended warranty through Airthings
Turn this into a printable system
Every post pairs with a binder or checklist you can actually put on the fridge.
Take this with you: the free Home Safety Checklist for Canadian Homes
A printable PDF of the full checklist, emailed to you. The full safe-home audit — fire, radon, flood prevention, electrical, chemical storage, garage safety, and the 72-hour kit — in one printable checklist.
Read the checklist onlineAll free resourcesPersonalized version, CA$9
Frequently asked questions
A mail-in alpha track kit is genuinely sufficient and is the cheapest way to get a Health Canada-compliant, lab-analyzed result — it's what many professionals use for real estate transactions. A digital monitor costs more but lets you keep testing year-round afterward and see trends, rather than buying a new kit every time.
Keep reading
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