Vintage Marion Electrical Instrument Co Model HS3, US Mil. Rad Meter w/Pouch For Sale

Vintage, Cold War Era Marion Electrical Instrument Company, Model HS3, US Military Gamma Radiacmeter Meter w/PouchThe Marion Ruggedized Null Indicator permits the use of the 'null system' for precise measurements under extreme field conditions. This device allowed for design engineers to use a "Null Indicator" in new applications.Meter is hermetically sealed and conformed with Jan-I-6.Marion Electrical Instrument Company
Marion Meters
Manufacturers of Marion Ruggedized Panel Meters
Circa 1951