If you want to get accurate uSv reading from software, then a calibration from a standard radiation source is needed.
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The radiation dose uSv reading should be calibrated on each Geiger counter and computer.
There are five points can be calibrated. More point calibrated, higher accuracy reading can be achieved.
How to calibrate?
Test a standard calibration radioactive source, read the CPM value and update one input box, and then update corespoinding uSv.
If you do not have five sources, then use default value for otheres.
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