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 2925-01-521-0600
NSN 6150-00-262-4977
NSN 5935-01-089-6756
NSN 6110-01-342-1932
NSN 6135-01-487-6275
NSN 7035-01-534-0597
NSN 5975-01-303-8374
NSN 5835-01-263-1293
NSN 6110-01-442-9397
NSN 5895-00-130-5816
NSN 5998-01-255-0814
NSN 5835-01-017-7486