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 4140-01-166-7211
NSN 5990-01-631-9791
NSN 6130-01-089-9052
NSN 5855-00-160-2286
NSN 5925-00-529-0441
NSN 5835-01-546-2008
NSN 5965-00-208-4896
NSN 5985-00-630-6674
NSN 5835-01-067-9271
NSN 5998-01-141-5250
NSN 5895-01-413-1923
NSN 5930-01-359-1995