Ratemeter

This ratemeter/geiger counter is a robust, portable and compact unit capable of detecting alpha, beta and gamma radiation and recording events on a re-settable digital counter. It has an integral Geiger-Muller (GM) tube which is maintained at high voltage by a small electronic inverter. Events register as audible clicks as well as a visible count on a small LCD display. The unit is powered by a single alkaline PP3 battery.