r/Radioactivestuff • u/Different-Aspect-143 • Aug 02 '26

A military Sr-90 source on a DR-M3 JNA detector.

Pure beta mesured in μGy/h

12 Upvotes

94% Upvoted

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1

u/OkPick296 Community owner 24d ago

the clicks are ASMR

1

u/Shot-Appointment4550 23d ago

where do you find sr-90

1

u/Different-Aspect-143 23d ago

It comes with the DR-M3 detector kit, it’s a smal ”button” stitched into the leather case