Opening the file as 'rb' in Python... the index of interest: print(hist_data[97046:97046+4].hex(" ")) # 55 aa 05 55 print(hist_data[97137:97137+4].hex(" ")) # 55 aa 05 00 It was luck that between those two indices I added a note (manually via tedious device buttons) "ULLIX" so it's easy to spot in the "Show History with Parse Comments" view. I saved the uploaded file directly from geigerlog connection to device.
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