Digital LED Geiger Counter, Time and Rate, 240 V AC, Without Tube

Description

The Digital LED Geiger Counter, also known as a mains powered Geiger-Müller counter, is designed for supervised radiation detection demonstrations, count rate observation and introductory nuclear science teaching. It is suitable for school physics laboratories, university teaching laboratories, science classrooms and controlled educational environments. This model operates from 240 V AC mains power, making it suitable for fixed bench and classroom use where a portable battery-powered counter is not required. The sloping front panel and large red LED display support clear visibility during teacher-led demonstrations and group practical work.

The unit is designed to use a compatible remote GM tube in a holder, connected by a standard BNC plug. The supplied title specifies that the counter is supplied without the tube, so the appropriate GM tube and holder must be selected separately before use. When used with a compatible large sensitive thin mica window GM tube, the system can detect gamma, beta and high-energy alpha particles. This supports classroom demonstrations involving radiation detection, count rate behaviour, shielding effects and distance-based observation where approved sources and safety procedures are used. The tube voltage is adjustable up to 600 V, supporting setup with compatible GM tubes that require appropriate operating voltage. Users should confirm tube voltage requirements, BNC connection compatibility and operating method before use.

The counter includes a built-in loudspeaker with volume control, allowing counts to be heard during practical demonstrations. This audible feedback helps students connect radiation events with count detection in real time. Count modes can be selected for continuous counting, counts over preset times or rate display as counts per second. These operating options support structured teaching activities where students compare count levels, background readings or changes under controlled experimental conditions. This product involves radiation demonstration work and high-voltage GM tube operation, so it must be used only under appropriate supervision by trained staff or qualified instructors. Users should follow institutional radiation safety rules, use approved sources only, avoid direct contact with high-voltage connections and confirm the correct tube setup before operation.

LabChoice Australia supplies Digital LED Geiger Counters for school physics departments, university teaching laboratories, nuclear science education, radiation safety demonstrations and supervised classroom experiments. They are suitable for count rate observation, radiation detection teaching, shielding demonstrations and introductory radioactivity experiments using compatible GM tubes and validated safety procedures.