Welcome cycologist! :)
cycologist has a GMC-320+ with SBT-20 tube.
Welcome pwborders to radmon.org!
pwborders has a BroHogan GK-Plus kit with SBM-20 tube.
Welcome hrduerr to radmon.org!
hrduerr has a BroHogan GK-RadMon kit with SBM-20 tube.
Welcome gpeter to radmon.org! :)
gpeter has a GQ GMC-320+ with M4011 tube.
Welcome marki555 to radmon.org! :)
marki555 has a DIY Geiger Counter from RH Electronics with SBM-20 tube.