In this video, I show you how I modified a $40 geiger counter kit to give it an external, handheld probe and connect it to an ESP8266 to calculate click counts. 
Fun With An Inexpensive Geiger Counter Kit
In this video, I show you how I modified a $40 geiger counter kit to give it an external, handheld probe and connect it to an ESP8266 to calculate click counts. 
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