Which component(s) of the Geiger-Muller detector alert(s) the operator to the presence of ionizing radiation?

Question

Quizplus · Accepted Answer

The audio amplifier and speaker of the Geiger-Muller detector produce sound signals that alert the operator to the presence of ionizing radiation. The shield, metal enclosure, and meter scale of the detector affect its sensitivity and accuracy but do not directly alert the operator.

Which Component(s) of the Geiger-Muller Detector Alert(s) the Operator to the Presence