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1 Results for "∇ 최저가 Ò1Ò《⑤⑦93》74⑸⑻ ∇강남아테나さ¾edinburgh강남아테나κ강남아테나아테나주대ㅂР셔츠룸아테나helen 강남아테나*강남아테나⒦₃vexed"
$15 Geiger-Muller Counter for Beta/Gamma/XRay
Project
by
GH
An inexpensive Geiger counter that can detect several kinds of ionizing radiation using a surplus Soviet tube and a one-use camera circuit
90
9