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 4140-01-282-9947
NSN 5935-01-559-2435
NSN 5920-00-345-5833
NSN 6105-01-152-8496
NSN 6130-01-525-5159
NSN 5990-00-902-7764
NSN 6645-00-906-9892
NSN 6110-01-352-1669
NSN 5920-01-386-3115
NSN 5998-00-613-2296
NSN 5960-00-194-1488
NSN 6610-01-571-5740