Portable Geiger Counter
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This low-cost, portable unit instantly measures
levels of harmful beta, gamma, and X radiations
on its compressed scale meter.
It features a halogen-quenched stainless steel
detector, Cesium-137 beta shielded calibration
source, and a range of 0-10 mR/Hr (logarithmic).
The unit measures 17 cm x 8 cm x 3.5 cm and
operates on a 9 V battery (provided).