Geiger counter GQ GMC-800 dosimeter test using radioactive sources and comparison

Hello everyone interested in measuring ionizing radiation Information: GQ Electronics GMC-800 Geiger Counter: Glass J321 Measurement: X-Ray, Gamma rays, beta paricles No window for beta and alpha particle Clicking sounds during measurement Calibrated with Cs137 662keV energy Comparative Geiger counters: 1. XR-1 BR-9B 2. Ecotest Terra MKS-05 3. BR-6 4. Radex RD1706 5. Pudibei NR-750 6. Fnirsi GC-03 7. GQ GMC-500+ 8. RKSB-104 My Blog: http://dozymetria.wordpress.com IG:   / dozymetria   FB:   / dozymetria   Thanks for watching