Minerals Engineering Co. Model SG 711 Scintillation detector

You may think you have seen this one in another videos of mine. That one is a Engineers Syndicate from Hollywood. I suspect this is made by Engineers Syndicate due to the name on the meter face and sold to Minerals Engineering Co. out of Grand Junction Colo. For more on particulars look at the description in my other video here https://youtu.be/gCTBLWA1-LI