Apollo-NG - PiGI - Raspberry Pi Geiger-Müller Interface
The Simplest DIY Gieger Counter - YouTube
Assembled DIY Geiger Counter Kit Module Nuclear Radiation Detector with LCD Display Radiation Dosimeter System Arduino NANO|Linear Guides| - AliExpress
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 Counter Workshop | The Natural History Museum