| Quantity | Component name | |
| 1 | × | Atmega328 Main MCU |
| 1 | × | ENC28J60 Ethernet controller |
| 1 | × | DHT11 Temperature and humidity sensor |
| 1 | × | BMP085 Temperature and pressure sensor |
| 1 | × | STS-5 Geiger tube, manufactured long time ago in Soviet Union |
| 1 | × | MC34063 Voltage converter for Geiger tube |
Marek Więcek