MS-544 PVG GEIGER MULLER COUNTER

G.M. Tube with digital read out meter. 6 digit counting system with
its power supply. Controls for reset, start and stop through on
panel. One pre set-able timer with 3 digit display and thumb wheel
switch. Complete with G.M. tube, mounted in acrylic stand. One
radioactive source in lead container. Aluminium absorbers sheets,
Digital multimeter to read the G.M. tube voltage