/tag-en/counter
| Title | Short description |
|---|---|
| Event counter | Event counter with 7 segment display. |
| Frequency Counter | Uses sound card as signal input device. |
| Frequency meter | Frequency meter using PC. |
| Geiger counter v1 | Beta and Gamma ray detector with a neon-tube. |
| Geiger counter v2 | Geiger coutner with GM tube. |
| Geiger counter v3 | Very good Geiger counter. It uses GM tube. |
