GQ GMC-300S Digital Nuclear Radiation Detector Monitor Meter Geiger Counter Radiation Dosimeter: Amazon.com: Industrial & Scientific
Bundle of 1 GQ GMC-320 Plus Geiger Counter Nuclear Radiation Detector USA Product Beta Gamma X-ray Dosimeter Radiation Monitor Meter with Black case and United Nuclear Geiger Counter Test Card: Amazon.com: Industrial
GQ GMC-SE Geiger Counter Radiation Detector Beta Gamma X-ray Portable Radiation Monitor Meter Digital Nuclear Radiation Dosimeter, Automatic Data Recording Device, Drop-Proof Silicone Case (Green): Amazon.com: Industrial & Scientific