Radiation Monitor

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GQ GMC radiation 1.10
Ionizing Radiation β Ɣ X
Union City, CA USA
2025-02-21 07:25:14
CPM :
µSv/h :

CPM (Counts Per Minute) data is measured by the GQ GMC-500 Plus Geiger Counter Radiation Monitor that monitors Beta, Gamma and X-Ray Radiation. The data is published on the GQ GMC Real-Time Radiation World Map.



0-50 CPM Normal
51-100 CPM Moderate
101-200 CPM Alert
Over 200 CPM Hazardous


Background Safe Levels

Suggested background readings levels:

1. Safe level:
Less than 50 CPM or 0.325 μSv/h. Means no worry at all.
2. Attention level: 51 CPM – 99 CPM. or 0.326 μSv/h – 0.65 μSv/h . Means you need to find out why.
3. Warning level: More than 100 CPM or more than 0.65 μSv/h. Means do not stay in this area for long period.