Indoor background radiation measured with a J305 Geiger-Müller tube in an office in The Netherlands.
Count per minute (cpm) radiation level. The tube used detects Beta and Gamma radiation (no Alpha). Conversion factor cpm to μSv/h is 0.00812 (as per manufacturer specs).
Radiation monitoring station in Kingston, Ontario using Alara Consultant Inc's Radiation Alert Inspector USB.
Radiation monitoring station in Beauval Saskatchewan. Monitors radiation using a USB Inspector in [cpm].
GK-B5 Radiation Monitor with GK-Wifi logger located in Sheffield, MA
Radiation on Florence Italy Beta and Gamma detected by Arduino-ethernetshield-libeliumradiation-sbm20geigertube. Updated every 5 minutes