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 4140-01-506-6385
NSN 6130-01-633-0891
NSN 5965-01-365-1678
NSN 5960-00-239-9008
NSN 7035-01-526-3196
NSN 5915-00-863-6751
NSN 6220-00-676-0904
NSN 6110-00-903-4768
NSN 7035-01-578-8449
NSN 5835-01-268-1924
NSN 6110-00-734-9982
NSN 6320-01-224-0063