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T O P I C R E V I E W
mimichris
Posted - 11/26/2022 : 05:48:28 Hello, I ordered a GMC-500 cheaper than the GMC-500+ from us in France, I'm curious to see what it gives. I made Geiger counters with SBM20 and SBT11A tubes, I bought a "MyGeiger" ver 2.15 from RH Electronics. I am looking for radioactive minerals in old mines in France. I live not far from the big mine closed in 2000, in the Hérault at Lodève.