The geiger counter is to detect radiation. The following website shows the value measured by the device installed indoor in Sapporo.
The value is updated every 30 seconds and indicated by microsievert.
This blog introduces all about Noboribetsu, Hokkaido, Japan. There are so many "must-see"s and "must-do"s, of course! including "onsen" (hot spring). Come experience the unique area of Hokkaido!