Buying Guide · Updated 2026
Best Radon Detectors in Canada 2026
Comparing the top radon monitors available in Canada: C-NRPP approval status, accuracy, display types, and which one to buy for your situation.
Published March 13, 2026
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Radon detectors sold in Canada range from $150 to $500 and vary quite a bit in how they measure, display, and report radon levels. The key things to think about before buying:
C-NRPP approval: Health Canada's designated body for radon measurement is C-NRPP. C-NRPP maintains a list of consumer-grade monitors that meet their accuracy standards. Approved devices are your best bet for documented, defensible results, especially for real estate or post-mitigation verification.
Accuracy: Radon monitors measure probabilistically, not precisely. ±10% accuracy on a 7-day average is typical; ±5% on a 2-month average is excellent. Faster hourly readings are less reliable than long-term averages.
Display type: Some monitors show numbers directly on the device; others require an app. App-dependent monitors can be frustrating if your phone is old or connectivity is limited.
Power source: Battery-powered devices can go anywhere; plug-in models need an outlet nearby.
Digital monitor vs. mail-in test kit: Digital monitors stay in your home and give you continuous readings. If you just want a one-time baseline before deciding whether to act, a mail-in alpha track kit ($30–$60) is often the better starting point. We have a pick for that below too.
Our picks
These are the monitors currently available on Amazon.ca with strong Canadian track records.
Airthings Corentium Home
~$170–190 CAD
The most popular radon monitor in Canada, and for good reason. Battery-powered with no app required. Shows 12-hour, 24-hour, and 7-day averages directly on the device. Widely available and typically under $190 CAD.
Best for: Most Canadian homeowners who want a straightforward, proven, standalone device.
- Accuracy
- ±10% after 7 days; ±5% after 2 months
- Power
- Battery
- Display
- On-device (no app required)
Aranet RN+
~$320–360 CAD
The tightest accuracy spec of any C-NRPP approved consumer device (±8% on 24-hour averages). Clear on-device display, adjustable measurement frequency, no subscription required.
Best for: Homeowners who want the most precise readings and C-NRPP approval for documentation.
- Accuracy
- ±8% on 24 hr, 7 day, and 30 day averages
- Power
- Battery
- Display
- On-device (user-selectable timeframe)
Airthings View
~$220–250 CAD
The most polished connected radon monitor on the market. Hourly readings, full app dashboard with historical trends, battery or USB-C power. Easy to share results or export data.
Best for: Tech-comfortable users who want a connected dashboard and app-based history.
- Accuracy
- ±10% on 7-day avg; ±5% on 2-month avg
- Power
- Battery or USB-C
- Display
- On-device + full history in app
Ecosense RadonEye
~$160–200 CAD
Achieves ±10% accuracy after just 10 hours, much faster than Airthings models that take 24+ hours for their first reading. Sharp OLED display with app history available.
Best for: Users who want results quickly or are checking a specific space fast.
- Accuracy
- ±10% at 370 Bq/m³ after 10 hours
- Power
- Plug-in
- Display
- OLED on-device + app
Airthings Wave Plus
~$280–320 CAD
Monitors radon, CO₂, VOCs, humidity, temperature, and air pressure. Radon accuracy matches other Airthings models. The multi-sensor value makes it a strong choice for households interested in indoor air quality broadly.
Best for: Air-quality-focused households who want radon as part of a bigger picture.
- Accuracy
- ±10% on 7-day avg; ±5% on 2-month avg
- Power
- Battery
- Display
- LED ring (motion-activated) + full data in app
Not sure you need a monitor yet?
A mail-in test kit is a cheaper first step. Get a baseline reading for $30–$60 before committing to a digital monitor. Health Canada recommends a long-term kit (91+ days) for any mitigation decision.
First Alert RD1 Radon Test Kit
~$47.50 CAD (lab fee included)
Best for: Getting a fast baseline reading before a home sale, or before deciding whether to buy a monitor.
- Process
- Place in lowest liveable area for 48–96 hours, then mail to the lab using the included prepaid envelope. Results within 3–5 business days of lab receipt.
- Note
- Lab reports in pCi/L. Multiply by 37 to convert to Bq/m³. Supplement with a long-term kit for mitigation decisions.
Does C-NRPP approval matter?
For most homeowners, it's a nice-to-have rather than a must. The non-approved devices on this list (Airthings Wave series) still provide useful, reasonably accurate data. But if you need certified results for a real estate transaction, post-mitigation documentation, or a landlord paper trail, stick to C-NRPP approved devices: the Airthings Corentium Home, Airthings View, Aranet RN+, Ecosense EcoQube, or Ecosense RadonEye.
How long before you get an accurate reading?
All electronic radon monitors need some settling-in time:
- Ecosense models: about 10 hours for ±10% accuracy
- Aranet RN+: 24 hours for initial readings; 7+ days for stated accuracy
- Airthings models: 24 hours for a first reading; 7+ days for ±10%; 2+ months for ±5%
For the most reliable long-term baseline, keep your monitor in place for at least 3 months and read the long-term average, not the hourly readings.
Full comparison
| # | Monitor | |
|---|---|---|
| #1 | Airthings Corentium Home ✓ C-NRPP | Buy |
| #2 | Aranet RN+ ✓ C-NRPP | Buy |
| #3 | Airthings View ✓ C-NRPP | Buy |
| #4 | Ecosense RadonEye ✓ C-NRPP | Buy |
| #5 | Airthings Wave Plus Not C-NRPP | Buy |
| #6 | Ecosense EcoQube ✓ C-NRPP | Buy |
| #7 | Airthings Wave Radon Not C-NRPP | Buy |
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Want to compare test kits too?
Our full DIY testing guide covers mail-in kits, digital monitors, and mitigation supplies, with C-NRPP approved picks for Canadian homes.
Ready to test your home?
Find a certified radon professional near you and request a free quote.