09/01/13, Inspector Alert, Durham, NC., [30 minute rain swipe,] Average 449

30 minute rain swipe
Location Durham, NC, United States
Altitude 394 feet
Geiger Counter Model Inspector Alert
Beginning time 09/01/13 06:20:08 PM
Ending time 09/01/13 06:50:12 PM
Elapsed Minutes 30

Total Counts 13,478
Average CPM 449
Minimum CPM 388
Maximum CPM 502