I bought the cheapest Geiger Counter Available on Amazon... : r/Radioactive_Rocks
GCA-06W Professional Digital Geiger Counter Radiation Monitor with External Wand - NRC Certification Ready- 0.001 mR/hr Resolution - 1000 mR/hr Range: Science Lab Geiger Counters: Amazon.com: Industrial & Scientific
Digital Geiger Counter, Nuclear Radiation Detector Personal Dosimeter for Home, Marble-Tile X-ray Gamma Ray Hard Beta Ray Radiation Monitor Lab, Built-in Lithium Battery USB Charging, 0.01-999 USv/h: Amazon.com: Industrial & Scientific
Amazon.com: Greaked Geiger Counter, Portable Electromagnetic Nuclear Radiation Detector, LCD Radiation Meter Dosimeter for Home Office Outdoor Inspection Ghost Hunting : Industrial & Scientific
GCA-03W Geiger Counter Nuclear Radiation Detection Monitor with Digital Meter and External Wand Probe - NRC Certification Ready- 0.001 mR/hr Resolution - 350 mR/hr Range: Science Lab Supplies: Amazon.com: Industrial & Scientific
Geiger Counter Buyer's Guide
Cheap Radiation Detector that ACTUALLY WORKS 🛡 - YouTube
GMC-500 Plus Digital Geiger counter radiation monitor - Walmart.com