Sparkfun Electronics Pocket Geiger Radiation Sensor - Type 5

The Pocket Geiger Radiation Sensor - Type 5 is a highly sensitive radiation sensor designed for the embedded systems market. Capable of detecting Gamma and Beta radiation, this sensor has a simple pulsed output that can be used with any microcontroller. Radiation Watch has a handful of documents and example Arduino code to get you up and running. They have also written a Windows example program in C# (source included!) to output graphs to a computer using an Arduino as the reader. Highly sensitive radiat...