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 4140-01-012-2460
NSN 5835-00-523-0736
NSN 6610-01-633-8931
NSN 5910-00-420-0701
NSN 5925-01-487-6830
NSN 6650-00-367-9230
NSN 5965-01-415-1521
NSN 5905-00-360-2349
NSN 6150-01-623-0451
NSN 6610-00-729-6479
NSN 7035-01-104-5446
NSN 5975-00-636-4910