Geiger Muller Counter with Tube - djb [80505]

The design of the djb GM Counter & Tube has been tailored to the requirement of schools. There are three main modes of operation:

• Ratemeter - used to examine the properties of alpha, beta & gamma radiation.
• Counter - gives the counts/minute at selectable intervals of 1 minute to 1 hour. Ideal for investigating half life. Up to 800 readings can be saved and remain after switch off.
• Period Count - gives counts in a user selected time which can be from 5 seconds to 1 hour. This enables items which are only slightly radioactive to be studied e.g. walnuts.

Supplied with tube and a 9V plugtop power supply.