Both are reliable detectors for long-term radon measurement and suitable for residential testing. Which is right for you depends on how and when you want to test for radon. We have laid out the differences between our testing devices below, so you can make an informed decision.

Whether you choose a single use test, or an electronic monitor, Health Canada recommends testing for a minimum of 90 days with a device approved by the Canadian National Radon Proficiency Program (C-NRPP) before deciding whether or not to take action to reduce your radon levels. All of the products on HomeRadonTest.ca are currently approved by C-NRPP.

What's the difference?

Single-use 90 Day Test Electronic Monitor
Cost $65.00 plus tax. $189.00 plus tax.
Reusability Single use product. Get an average over a period of time of the radon level at a particular location. Versatile, test multiple locations with the same device sequentially, or monitor a single location continuously.
Electricity requirements Passive detector, no electricity required. Can be used in places without access to power. Digital device, must be powered. Some models are battery operated, others are plug-in.
Air quality monitoring features Only measures radon levels in a home. Some models can measure other indoor air quality features in addition to radon, including humidity, CO2, VOCs, PM 2.5, air pressure, and temperature.
Testing process Detector must be activated on our website. After 90 days of testing, detector must be mailed to lab for analysis. Plug and go. Smartphone app required for most models.
Receiving results 90 day test results available via email within 15-20 business days upon return of test to the lab. Immediate real-time results available within one hour on device or via smartphone app (model dependent). Access to weekly and monthly averages.
Radon measurement Results provided in Canadian and international standard: Becquerels per cubic metre (Bq/m3). Results might be provided in US standard by default: picocuries per litre (pCi/L).
You may have to edit device settings or convert to Bq/m3 when comparing to Canadian and international guidelines.
Financial supports Many financial supports for radon reduction in Canada prefer a report with the results of a C-NRPP approved single-use test. Ensure the funding agency allows a 90-day report from a C-NRPP approved Electronic Radon Monitor.
Purchase Single-use 90 Day Test Electronic Radon Monitor

Short-term radon readings vs long-term risk

Graph showing how radon fluctuates over time with spikes and dips
Health Canada

When looking at a digital read-out on an Electronic Monitor, it can be alarming to see a sudden spike in radon levels.

It is important for homeowners to understand that while radon levels may occasionally spike upwards or dip downwards, it is the average annual exposure level that is a concern. Health Canada recommends that homeowners base any decision to mitigate their home on a long term average radon level, which is determined by testing for 90 days or more.

Already have a Single-use 90 Day Test?

Start test

You must activate your test on this website to receive your results.

End test

Upon completion, enter the end date and return radon test for analysis.