East German NVA (Nationale Volkesarmee - National Peoples Army) CBRN Dosimeter.
Used to measure the amount of radiation that the wearer has been exposed to.
Pictures show one only.
They are still in storage packs after release from the German Army.
Due to the nature of these items, they are being sold as collectors items only and are not to be used for radiation detection purposes.
These are unissued, however due to being in storage they may have storage marks