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 6620-01-214-7520
NSN 6145-00-528-6467
NSN 5920-01-239-2038
NSN 5915-00-014-6642
NSN 5905-01-395-1237
NSN 6150-00-189-0292
NSN 2925-00-157-1602
NSN 6645-01-083-4759
NSN 5925-01-464-1195
NSN 6150-00-549-2427
NSN 6645-01-168-8465
NSN 6145-00-674-1807