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 5990-01-127-9294
NSN 5915-01-177-9527
NSN 5998-01-023-8080
NSN 5999-01-364-7743
NSN 6650-01-651-6221
NSN 5990-00-031-8598
NSN 5915-00-661-2223
NSN 5960-00-102-4257
NSN 5990-01-294-6198
NSN 5930-01-272-6263
NSN 5835-01-384-3206
NSN 5985-00-889-4217