http://www.macnn.com/articles/01/12/19/rad.1.2b1:/
Rad 1.2b1: software for radiation detection
updated 01:05 am EST, Wed December 19, 2001
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Black Cat Systems has released an OS X version of Rad 1.2b1, its interface software for the $150 GM-10 radiation detector, which plugs into any Macintosh or Windows computer (using a standard serial port), and detects alpha, beta, gamma, and x-ray radiation.
