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Mazur Instruments PRM-9000 Geiger Counter and Nuclear Radiation Contamination Detector and Monitor, 0.001 to 125 mR/hr Range, +/-10 Percent Accuracy | Amazon price tracker / tracking, Amazon price history charts, Amazon price
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Amazon.com: GQ GMC-500Plus Geiger Counter Nuclear Radiation Detector Monitor Dosimeter, White : Industrial & Scientific
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George Wieczorek and colleague using Geiger counter at U.S. Department of Agriculture facility - Science History Institute Digital Collections
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