Recalled and not-approved radon monitors

C-NRPP's consumer monitor list has a "NOT APPROVED" section, and marks the devices Health Canada has acted on. The table below lists each device exactly as C-NRPP names it, in A to Z order, and shows which Health Canada notice actually names that product. Where C-NRPP points to a notice about a different product, the last column says so.

Health Canada published two kinds of notice here. Five are a consumer product recall, which reports the company's own figures for units sold. Two are a consumer product advisory: in both, Health Canada says it contacted the foreign selling company and that the product had been removed from sale on Amazon.ca. Both kinds tell owners to stop using the device. The table gives each notice's identification number and original published date.

The five 2025 notices share one finding: sampling and evaluation by Health Canada's Radiation Protection Bureau determined that the product measures inaccurate radon levels and likely poses a danger to human health or safety. The two 2022 notices are more specific. Each device could report a low value whatever the real radon level was, which is the failure that matters most, because a falsely low reading tells a household it has no problem.

Recalled (Health Canada)

Health Canada found the device measures radon inaccurately and published a recall or advisory. Recalls carry a legal rule in Canada: the Canada Consumer Product Safety Act prohibits recalled products from being redistributed, sold or even given away there.

Not approved (C-NRPP)

The device appears on C-NRPP's not-approved list. Some of these were recalled; four (the Bootu RN-80, both CRADTEC models and the HAKINAKU detector) carry no Health Canada notice on C-NRPP's list.

Not included (C-NRPP)

C-NRPP has published no result for the device either way. Manufacturers sign up to enter C-NRPP's annual comparison, so many monitors sold in the United States have simply never been entered. That is an absence of evidence, not a failed test.

Health Canada draws the same line. It and C-NRPP watch the market and test electronic radon monitors, and devices that fail the minimum performance requirements are recalled. A device can be missing from both lists simply because it is still being tested, or is under review or regulatory action.

Every Health Canada notice above concerns units sold on Amazon.ca. On 1 October 2026 we tried to check Amazon.com for each model on this page and for each Amazon.ca listing number Health Canada published. Amazon.com answered almost every automated check with a security page instead of results, so we could not confirm whether any of these models is listed for sale in the United States today. We will not guess. Until we can check through Amazon's own product data, we treat every model here as one you might still find for sale.

1. 1

   Find the model number

   It is usually on the box, the label on the back of the device or the manual. The InkBird recall, for example, says its "Ink-RD2" label is on the packaging.

2. 2

   Compare it with both tables on this page

   Match the brand and the model number, not just the look of the device. Several recalled monitors are small black or blue boxes with "Radon Detector" printed under the screen.

3. 3

   Check the listing's identification number

   Health Canada published the Amazon.ca listing number (ASIN) for most recalled models. If a listing you are looking at shows one of those numbers, treat it as the recalled product.

4. 4

   Look for an independent result

   Before you buy any monitor, see whether it appears in C-NRPP's latest results. If it does not, the maker's accuracy claims are the only evidence, and our hub says so beside each one.

1. 1

   Stop using it

   Every notice says the same thing first: stop using the device at once. Do not pass it on.

2. 2

   Ask the seller for a refund

   The InkBird notice tells owners to contact InkBird for a full refund. Other notices give the company's email address; the links in the table open each one.

3. 3

   Dispose of it as electronic waste

   Health Canada's notices say to follow your local electronic waste requirements.

4. 4

   Test again with a method you can trust

   A lab-analyzed short-term or long-term kit, or a monitor with an independent result. See radon test kits and radon detectors and monitors.

5. 5

   Act on the new result

   EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. The results interpreter explains a number once you have one.

Read this figure as textHide the text version

Test	How long it runs	What it is for
Short-term test	Stays in the home from 2 to 90 days, depending on the device, and for a minimum of 48 hours.	A faster screening result. Because radon levels vary from day to day and season to season, it is less likely than a long-term test to tell you the year-round average.
Long-term test	Stays in the home for more than 90 days.	It is more likely than a short-term test to tell you the home's year-round average radon level.
Continuous monitor	Logs readings for the whole test, run as a short-term or a long-term test under the same durations in EPA guidance.	Logs a graph over time, so you can see trends and spot anomalies rather than a single number.

Read this figure as textHide the text version

2 pCi/L

4 pCi/L

00 Bq/m³274 Bq/m³4148 Bq/m³6222 Bq/m³8296 Bq/m³10+370 Bq/m³

• Below 2 pCi/L (below 74 Bq/m³)Below both of EPA's guidance levels.
• 2 to 4 pCi/L (74 Bq/m³ to 148 Bq/m³)EPA recommends considering a fix when the level is between 2 and 4 pCi/L.
• At or above 4 pCi/L (148 Bq/m³ and up)EPA recommends fixing a home when the radon level is 4 pCi/L or higher.

Health Canada's advice in its 2025 notices is direct: buy only electronic radon monitors that have passed performance testing by C-NRPP, the Canadian certification program it recognizes. In the United States there is no federal list of approved consumer monitors that we can point you to, so C-NRPP's results are the closest public, independent check, with one caveat: C-NRPP tested the Canadian versions, and we have not confirmed that the U.S. versions are identical.

• Look for the model in C-NRPP's latest results, and read what the grades mean on independent accuracy results explained.
• Read the maker's accuracy claim closely. A claim of, say, ±10% after 7 days at 200 Bq/m3 names a time and a radon level; a claim with neither is hard to compare.
• Be wary of a device whose screen shows something other than a radon reading. The recalled Air Steward displayed "Coefficient of injury" on its screen.
• Prefer a lab-analyzed kit when a decision is on the line. A short-term or long-term kit is analyzed by a laboratory; see radon test kits.
• Use any monitor for at least three months before you decide on mitigation, as C-NRPP advises, and decide on the long-term average.