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 6650-01-081-4908
NSN 5999-01-634-0576
NSN 5985-01-375-1940
NSN 6110-00-297-5768
NSN 6620-00-955-6122
NSN 6130-01-479-6251
NSN 5996-01-646-1264
NSN 6240-01-522-3320
NSN 5945-01-501-4469
NSN 6610-01-014-3964
NSN 6610-01-321-1835
NSN 6620-01-568-5531