A revision of the French DOM-410 geigercounter, used by French and Belgian military in the late 70’s untill the early 90’s.
This unique geiger counter is very hard to find, even in Europe. It is a very sensitive, yet heavy meter. It cannot detect alpha radiation, you need another probe for doing so.
The sound is normally not included in the standard package, I fixed that myself, and I had to sacrifice an extension cable.
I used a pitchblende source and a Coleman lantern mantle.
I know, I sound gay, but that