A self-contained and AC powered detector and speaker which produces a sharp click for each event when exposed to background radiation or sources of alpha, beta, or gamma radiation. Useful for qualitative comparisons, this unit can show the effects of distance, shielding, and activity of a radiation source.

PLEASE NOTE: This product is intended for educational and didactic use only. It is neither designed nor intended for purposes of inspection, assessment, or monitoring of persons, materials, or environment for health and/or safety reasons.