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 5905-01-217-7563
NSN 6620-00-891-2225
NSN 6145-00-225-8709
NSN 5990-00-269-2226
NSN 6130-01-317-9238
NSN 5915-01-119-0250
NSN 2925-01-035-1096
NSN 5920-01-259-4258
NSN 6130-01-227-1322
NSN 6240-01-571-7706
NSN 5999-01-623-4844
NSN 5910-00-022-7717