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 6620-00-269-8950
NSN 6645-00-456-2219
NSN 5855-01-520-5873
NSN 6320-00-149-7570
NSN 6645-00-515-6148
NSN 5920-01-530-3653
NSN 4140-00-045-8117
NSN 5975-01-654-0032
NSN 5996-01-515-6411
NSN 6220-01-442-1190
NSN 6240-00-263-0549
NSN 5915-01-350-6599