Arduino IDE Geiger Counter DIY Kit ver.2 with LCD; w/o GM Tube RH Electronics
DIY Geiger Counter - YouTube
The Simplest DIY Gieger Counter - YouTube
Geekcreit Assembled DIY Geiger Counter Kit Module Miller Tube GM Tube Nuclear Radiation Detector Geekcreit for Arduino - products that work with official Arduino boards - EuDirect Shop
DIY Geiger Tube | PhysicsOpenLab
ESP8266 powered DIY Geiger Counter | Embedded Lab
DIY Geiger Counter Is Sure To Generate Clicks | Hackaday
DIY Geiger Tube | PhysicsOpenLab
DIY Quick'n'Dirty Geiger Counter | Hackaday.io
From HackSpace mag issue 14: DIY Geiger counters | Noise