09/01/13, Inspector Alert, Durham, NC., [testing rain, "car swipe"] 15 x background, Average 457 CPM


Big Thunderstorm...and with the recent rains showing some rads I am testing a car swipe, background was 29 cpm...so approx 15x background

10 minute count ~ Durham, NC ~ Altitude 394 feet

Geiger Counter Model Inspector Alert
Elapsed Minutes 10
Total Counts 4,572
Average CPM 457
Minimum CPM 388
Maximum CPM 502

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