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 5975-01-275-2767
NSN 4140-00-826-4283
NSN 6150-01-592-2611
NSN 5895-00-039-5486
NSN 5985-00-658-2879
NSN 2925-01-645-2948
NSN 5935-01-013-1991
NSN 6145-01-606-7282
NSN 5999-00-233-6366
NSN 5915-00-191-3616
NSN 2925-01-543-5571
NSN 5855-01-120-7831