nanoDot kit (contains nanoDot A, B, C), Model Number 03500-000; radiation monitoring dosimeter used with the microSTAR readers
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.
Worldwide
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-2553-2023