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 6320-00-790-4844
NSN 4140-00-904-3438
NSN 6620-01-459-3971
NSN 6620-01-161-1200
NSN 5895-00-413-4535
NSN 5999-01-204-7809
NSN 5895-01-311-1362
NSN 5930-01-065-0890
NSN 5910-01-409-1156
NSN 6130-01-358-7703
NSN 4140-00-068-8136
NSN 5930-01-130-5602