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 6610-00-242-3160
NSN 4140-01-092-1098
NSN 5998-01-382-0631
NSN 5920-01-152-1949
NSN 5855-01-098-9038
NSN 5998-01-124-5428
NSN 5920-01-317-3506
NSN 6110-00-010-4545
NSN 6220-01-288-0416
NSN 6650-01-345-1340
NSN 6240-00-800-1854
NSN 6650-01-341-8097