Landauer recalls QC (Cs-137) nanoDot D2DNS dosimeters with model numbers 18135-000, 18135-KIT, 18135-SET due to potential accuracy problems in radiation monitoring.
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 certain nanoDot D2DNS radiation monitoring dosimeters because they may not be within the specified accuracy range of +/-5.5%. This could affect radiation measurement readings in normal use.
The dosimeters may have a non-conformance in the Optical Stimulated Luminescence (OSL) material that affects their accuracy. This could lead to incorrect radiation exposure readings, but does not cause immediate harm.
Users of radiation monitoring dosimeters for safety checks, particularly those in radiation safety roles or environments. The risk is low as the issue relates to potential accuracy rather than immediate safety hazards.
Check for model numbers 18135-000, 18135-KIT, or 18135-SET on the dosimeter. These units were sold with microSTAR readers and have UDI/DI 0860003399903 and specific batch numbers.
Look for model numbers 18135-000, 18135-KIT, or 18135-SET on the dosimeter.
Landauer received reports that some nanoDots may be outside the specified accuracy range of +/-5.5% due to a potential non-conformance in the OSL material.
Model numbers 18135-000, 18135-KIT, and 18135-SET are affected.
The recall does not require immediate action, but you should check the model numbers if you own one of these dosimeters.
We’ve drafted a message you can send Landauer to request your refund or repair — edit it as you like.
Subject: Recall Z-2569-2023 — Landauer Landauer Hello, I own a Landauer that is covered by recall Z-2569-2023 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.
