There is a bug in Firmware 1.0 that causes error in pulse counting. The higher is dose rate the greater is an error.Bug was caused by blocking delay that was used in 'beep' procedure.If you have "Radioactive@Home --- 2.60 ---" detector you can upgrade firmware by RS232 connection but if you don't know how to do it - don't do it!Here is an upgrade pack:Firmware Upgrade PackGood luck!

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