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GQ GMC-300E-Plus Digital Geiger Counter Nulcear Radiation Detector Monitor Meter dosimeter Beta Gamma X ray Data Logger Recorder Realtime Monitoring Test Equipment: Amazon.com: Industrial & Scientific
GQ GMC-300E-Plus Digital Geiger Counter Nulcear Radiation Detector Monitor Meter dosimeter Beta Gamma X ray Data Logger Recorder Realtime Monitoring Test Equipment: Amazon.com: Industrial & Scientific