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About the radiation monitor in Viborg

This page shows live radiation measurements from a privately operated Geiger counter located in Viborg, Denmark.

The device is a GMC unit with M4011 and J707 Geiger-Müller tubes, detecting ionizing radiation and reporting it in real time.

All data is logged and processed on a self-hosted Linux server, and displayed as µSv/h (microsieverts/hour) and CPM (counts per minute).

The system is developed and maintained by Jakob Munch Overgaard and updates every minute with a historical graph and color-coded status. Install the Android app for alerts if radiation rises. See also my site: https://tvipper.com

Live Radiation Monitoring in Viborg – µSv/h and CPM

Monitoring radioactivity and possible fallout in the Viborg area, updated every minute.

0.04 µSv/h
CPM: 6
Normal
This is within natural background levels in Viborg.
Last updated: 2025-07-05T15:36:07+02:00