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 4140-00-707-5963
NSN 7035-01-386-3004
NSN 5855-00-962-5792
NSN 5895-01-534-3620
NSN 4140-00-007-5726
NSN 5990-00-199-0081
NSN 5930-01-049-8114
NSN 6145-01-262-4781
NSN 5855-01-203-4719
NSN 5996-01-088-6676
NSN 5835-01-293-4122
NSN 6105-00-869-8077