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 6645-01-502-3068
NSN 5945-00-156-4324
NSN 5996-00-648-2192
NSN 5930-01-170-3930
NSN 5985-01-161-4140
NSN 5855-01-107-5925
NSN 5960-01-235-5358
NSN 5996-00-763-1239
NSN 5960-01-588-8410
NSN 6240-00-168-0790
NSN 5835-00-092-1136
NSN 5925-01-488-5663