Lower riskMedical device recall · FDA · Published September 7, 2021
NOX T3s Recorder: Inaccurate position detection may affect sleep monitoring
NOX Medical recalls T3s recorders with firmware error causing inaccurate device position detection during sleep monitoring. Affected units have specific serial numbers. No action required as the issue does not pose a safety risk.
“NOX T3s Recorder: Inaccurate position detection may affect sleep monitoring.” GovInfoNow, updated August 19, 2026. https://govinfonow.com/recall/61828-nox-t3s-recorder-inaccurate-position-detection-may-affect-sleep-monitoring. Based on FDA recall #Z-0031-2022 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-0031-2022%22&limit=1).
The FDA announced on Sept. 7, 2021, that NOX MEDICAL voluntarily recalled Nox T3s Recorders due to firmware errors causing inaccurate device position detection. Owners should contact the company for a remedy.
How to tell if you have it
Brand: NOX MEDICAL
Product: Nox T3s Recorder
Catalog Number: 561111
UPC: 15694311111443
Units affected: 128
The hazard
An error in the device firmware results in the inaccurate detection of device position, according to the FDA.
Context
GovInfoNow's records show another recent recall of a NOX MEDICAL product: the NOxBOXi Nitric Oxide Delivery System on Sept. 14, 2026.
How to tell if you have this one
Check if your NOX T3s Recorder has a serial number starting with 300106 (e.g., 300106423, 300106426). The device is intended for sleep monitoring and may have a specific catalog number.
Brand
NOX MEDICAL
Product
Nox T3s Recorder
Category
Medical device
Based on the official FDA remedy
What to do — step by step
Check Device Serial Number
Verify your NOX T3s Recorder's serial number matches the list provided in the recall notice.
Where it went and when
Where it was distributed
Distributed nationwide; the notice names 9 states.
Named in the notice
Covered by “nationwide”
Not listed
FDA distribution: “US Nationwide distribution in the states of OH, IL, GA, IA, CA, PA, NM, MI, SD.” States read from FDA’s own wording; “not listed” means the notice does not name it.
Named in the notice: California, Georgia, Illinois, Iowa, Michigan, New Mexico, Ohio, Pennsylvania, South Dakota.
Recall timeline
FDA terminated this recall 20 months after the firm started it.
1Firm started the recall
2FDA classified it Class II
3Published in FDA’s Enforcement Report
4FDA terminated the recall
Dates from the agency record only; steps without a date are left out.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Official source: FDA Recall #Z-0031-2022 (September 7, 2021) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-0031-2022 to see it in context.
Plain-language summary written by qwen3:4b on August 19, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.