GM tube sensitive to alpha, beta and gamma radiation. Supplied with a protective cap for the delicate mica window (which is removed when measuring alpha radiation, for example).
Compatible with, for example, our GM counter 513600 (513530, 513535).
The extra sensitive tube (28.6 mm window) is suitable for measurements of radon daughters, naturally radioactive minerals, cosmic radiation and other applications where a greater area of sensitivity, greater solid angle or more sensitive volume are desirable. This tube is supplied with a forked holder with a mounting post.