An instrument which measures the ratio of electrical power with reference to a predetermined value and is calibrated in units of sound intensity, usually decibels. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. if other than audio frequency ranges, see meter, noise level.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5960-00-289-6591
NSN 5930-00-521-2834
NSN 6240-01-348-8975
NSN 5925-00-900-1904
NSN 5915-01-522-2383
NSN 6650-01-488-6418
NSN 5965-00-882-6949
NSN 5985-01-038-7038
NSN 6110-01-444-0763
NSN 5965-00-834-6298
NSN 5999-01-559-3165
NSN 5920-01-051-0090