Nice counter, and very nice price. I modified my case and got 5 times more sensitivity. Plastic blocks beta, so a little work with a razor blade and file opened up the tube to air, but left the electrical connections on the ends of the tube covered.

Nice counter, and very nice price. I modified my case and got 5 times more sensitivity. Plastic blocks beta, so a little work with a razor blade and file opened up the tube to air, but left the electrical connections on the ends of the tube covered.

Nice counter, and very nice price. I modified my case and got 5 times more sensitivity. Plastic blocks beta, so a little work with a razor blade and file opened up the tube to air, but left the electrical connections on the ends of the tube covered.

Glad to have this. Description shows you everything you need to know. 2 screens: cumulative & cumulating radiation. This would be ESSENTIAL on case of any type of emergency.

Glad to have this. Description shows you everything you need to know. 2 screens: cumulative & cumulating radiation. This would be ESSENTIAL on case of any type of emergency.

Glad to have this. Description shows you everything you need to know. 2 screens: cumulative & cumulating radiation. This would be ESSENTIAL on case of any type of emergency.