Monitor for radioactive radiation based on STS-6 (CTC-6) Geiger tube. Sensitive to gamma and hard beta. Transmission every 60 seconds. Dose rate is estimated from pulse rate with fixed factor. Normal level is just below 0.1 µS/h.
The Geiger–Müller counter in Skierniewice, Poland. The Geiger Counter updates every five minutes with counts-per-minute (CPM) and microsieverts. Dead Time Correction (DTC) is done to compensate for detector dead time.