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 6220-01-610-5783
NSN 5945-01-434-2028
NSN 6130-01-410-8529
NSN 5905-01-044-1215
NSN 6650-00-438-3983
NSN 6620-01-566-1142
NSN 6645-00-736-0476
NSN 5945-01-651-0493
NSN 6130-00-112-9510
NSN 5920-01-050-2471
NSN 5960-01-397-8328
NSN 5920-01-361-8835