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 5996-00-363-9666
NSN 5945-00-517-2494
NSN 5920-01-262-5094
NSN 5855-01-656-6808
NSN 6110-00-891-8823
NSN 5915-01-289-1187
NSN 6110-01-589-2151
NSN 5925-00-686-3364
NSN 6145-01-224-1829
NSN 6650-01-272-9746
NSN 6650-00-073-0269
NSN 5920-01-399-1801