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 6110-00-126-1989
NSN 5920-01-475-1979
NSN 6685-00-603-6640
NSN 5950-00-005-4569
NSN 6645-01-152-5207
NSN 5930-00-174-7854
NSN 5965-00-179-7886
NSN 5935-00-385-3635
NSN 5935-01-229-5667
NSN 6620-01-462-0001
NSN 5945-01-098-0642
NSN 5920-01-534-3806