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 5999-00-130-7603
NSN 5990-01-395-4194
NSN 5925-00-952-0618
NSN 5950-01-385-2202
NSN 5930-01-004-3529
NSN 2925-00-391-0331
NSN 5985-00-091-1122
NSN 5975-01-600-2352
NSN 5915-01-543-7031
NSN 5960-00-992-5506
NSN 6130-01-126-2032
NSN 6145-00-116-7810