GM Pancake Probe
Designed for use in conjunction with the ASM-990 Series and other standard GM survey meters, the 489-110D can detect alpha, beta, and gamma radiation.
Energy Compensated GM Probe
The Model 90-12 is a rugged, lightweight, energy compensated, general-purpose Geiger-Mueller (GM) tube based hand held probe, with beta shields.
Thin-End Window GM Probe
Thin-End Window GM Probe for alpha above 4 MeV, beta above 70 keV, and gamma and x-ray above 6 keV

