Landauer recalls nanoDot B dosimeters (model 03502-000) for potential accuracy problems in radiation monitoring. Affected units may not read radiation levels correctly, risking incorrect safety assessments.
LANDAUER received reports indicating that some nanoDots may potentially be outside of the specified range of +/-5.5% accuracy. Investigation of nanoDots indicated the presence of a potential non-conformance in the Optical Stimulated Luminescence (OSL) material that is beamed after exposure and emits fluorescence proportional to radiation exposure.
Landauer is recalling nanoDot B radiation dosimeters that may not read radiation levels accurately. This could lead to incorrect safety assessments if used in radiation monitoring.
The dosimeters may have a non-conformance in the OSL material that affects their accuracy. This could cause them to read radiation levels outside the specified +/-5.5% range, potentially leading to incorrect safety assessments.
Users of Landauer nanoDot B dosimeters with model number 03502-000 are affected. Those using these devices for radiation monitoring may face inaccurate readings.
Check for model number 03502-000 on the nanoDot B dosimeter. These units were sold with the microSTAR readers and have UDI/DI 0860003399903.
Look for model number 03502-000 on the nanoDot B dosimeter.
Landauer received reports that some nanoDots may be outside the specified +/-5.5% accuracy range due to a potential non-conformance in the OSL material.
The recall record does not specify a remedy, so no action is required beyond checking the model number.
The recall indicates potential accuracy issues, but the hazard level is low risk as the device may not cause immediate harm.
We’ve drafted a message you can send Landauer to request your refund or repair — edit it as you like.
Subject: Recall Z-2555-2023 — Landauer Landauer Hello, I own a Landauer that is covered by recall Z-2555-2023 from Landauer. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
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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.
