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Rad is the Black Cat Systems software for geiger counter radiation detectors.

Rad offers the following features:

  • Graphing of radiation levels, with
    • User selectable scaling
    • Variable integration (measurement) period
    • Trend line
    • Statistics
    • Optional timestamps of data
    • optional filled area under curve
  • Recorded data can be saved to disk for further analysis
  • Optional "clicking" sound for each particle detected
  • GM unit can plug into any serial port, most USB/serial devices also work

What's New

Version 3.1.0b5:
  • Release notes were unavailable when this listing was updated.


  • OS X 10.3.9 or later

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Current Version (3.x)


Downloads 2,761
Version Downloads 45
License Demo
Date 19 Jan 2012
Platform OS X / PPC 32 / Intel 32
Price Free
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