18550/ZP1320/MX164

Old type number 18550
New type number ZP1320
Mullard type MX164
Detects beta & gamma radiation
Effective range 0,001-100 R/h
Plateau 500-650 V
Cathode  28% Cr, 72% Fe
Filling Neon, Argon, Halogen
Height 44 mm
Diameter 10 mm
Weight  
Symbol