Geiger Counter PCE-RAM 5Description Radioactivity Data Logger for dose measurement of X, and y radiation simple operation alarm function battery operation. The radioactivity data logger is a small, highly sensitive radiation warning device mainly used for monitoring X, and y. Black and white illuminated OLED display that is clearly visible even at night. It has a warning flashing function. The radioactivity data logger itself has two alarm modes: sound and LED light. The