Geiger counter for Arduino Hardware 1 × STS-5 Geiger–Müller tube 1 × Radiation Detector Arduino Compatible DIY Kit PCB ver. 3.10 1 × Arduino UNO R3 1 × 10μF capacitor 3 × Jump wire 1 × USB type A/B cable Software arduino-mk >= 1.5 RRDtool >= 1.4.9 Bash