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 5915-00-734-4399
NSN 5910-00-728-5374
NSN 6110-01-201-2578
NSN 5960-01-354-0762
NSN 5855-01-241-1054
NSN 5996-01-522-5852
NSN 6620-00-192-4855
NSN 6220-00-755-7546
NSN 5895-01-363-9865
NSN 6685-00-347-7409
NSN 5950-01-537-1110
NSN 6650-00-614-1711