Geiger Counter Test / Check Source ( Science Teaching / Project )

Radtriage personal radiation detector for wallet or pocket Buy 3 Get 1 Free

Geiger Counter Check Source 500+CPM

S.E. International Monitor 4 Geiger Counter Detector with Case & Manual

Vintage, LAST LOT MADE - AMERICAN MANTLE Company Lantern Mantle.

Vintage Victoreen Civil Defense Geiger Counter FCDA Item No. CD V-720 Mod 2

Scintillator Crystal CsI(Tl) 10x10x10 mm for DIY gamma spectroscopy with SiPM

LUDLUM GEIGER COUNTER # 2 3 12 14C : MOD-KIT TO ADD FLASHING LED $9.50 + S/H