Soviet_roentgenometer_-_radiometer_RR-51M_РР-51М_012

Soviet made radiation detector - roentgenometer/radiometer RR-51M (Ð Ð -51Ð) kit, external probe equipped with 2 Geiger-Mueller tubes - STS-5 (CTC-5) / SBM-20 and CI-3BG / SI-3BG for high radiation levels

author: Jan Helebrant

www.juhele.blogspot.com

license CC0 Public Domain Dedication

Done