Recently I changed my Geiger counter.I added the new counter then deleted the old one as they are at the same location.
Since the change over the marker on the map shows 0 all the time. If you click on the marker it shows acpm and microsieverts but no cpm. The history data also shows acpm and sieverts but no cpm.
@Gallaxial, you have to purchase the license for the Data Logger PRO software. You can do this by clicking the File button and then Order. Or you can download the free Data Viewer software.