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    Medical devicesUpdated Jan 3, 2026Masimo CorporationOfficial source

    Masimo Rainbow Adhesive Sensors recall in Canada: Inaccurate readings

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    In plain language

    This recall involves Masimo Rainbow Adhesive Sensors sold in Canada. They are being recalled because specific lots may give inaccurate SpCO and SpMET readings. Stop using the product and follow the return steps in the official notice.

    What to do

    • Stop using the product immediately.
    • Check the lot numbers provided in the recall notice.
    • Return affected products for replacement.

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    Affected products

    • Rainbow Adhesive Sensors

      Lot: 22FTG, 22FTD, 22FTE, 2219, 2221, 2222

    Why this matters

    Inaccurate medical device readings

    Do I have this product?

    This recall only applies to specific products. Follow the steps below to check.

    1. 1

      Check the product name

      Make sure your product name matches one of the affected products listed above.

    2. 2

      Check the lot number

      Lot numbers identify specific production batches.

      Affected lots: 22FTG, 22FTD, 22FTE, 2219, 2221, 2222

    If your product matches one or more of the details above, it may be affected by this recall.

    If your product does not match these details, it is not affected by this recall.

    When in doubt, always check the official notice.

    Want alerts if similar products are recalled in Canada?

    Frequently Asked Questions

    Why was this product recalled?

    Inaccurate medical device readings

    What should consumers do?

    Stop using the product immediately. Check the lot numbers provided in the recall notice. Return affected products for replacement.

    Where was the product sold?

    This product was sold in Canada. For specific retailers or distribution areas, please check the official recall notice linked on this page.

    Is there a health risk?

    Yes, there may be a health risk. Inaccurate medical device readings

    When was this product recalled?

    This product was recalled on November 6, 2023.

    Is the Masimo Corporation brand affected by this recall?

    Yes, Masimo Corporation products are affected by this recall. This recall involves Masimo Rainbow Adhesive Sensors sold in Canada. They are being recalled because specific lots may give inaccurate SpCO and SpMET readings. Stop using the product and follow the return steps in the official notice.