02/04/14, Durham, NC., Arrow-Tech 3007-A w/ Ext. Probe [testing rain]

Report for my rain sample...my background is 31 cpm/ rain plus 500 cpm
Elapsed Minutes 11 
Total Counts 5,049
Average CPM 459
Minimum CPM 44
Maximum CPM 551
Durham, NC~394 feet~Arrow-Tech 3007-A w/ Ext. Probe