The Geiger Counter updates every few minutes with counts-per-minute (CPM) and microsieverts.
This is an Unofficial/Non-Government feed and may go offline occasionally for maintenance.
Arduino and PC is used with a (or two)Russian SBM-20 Geiger Muller Tube(s), hard Beta/Gamma detector:
CPM to uSv conversion factor used is 1/175.43(=0.00570, or 1/350.86 = 0.00285).
The following graphs are made by using the munin-server.