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 5985-01-269-0087
NSN 6610-00-051-0989
NSN 5996-01-360-5635
NSN 5935-01-158-6291
NSN 5950-01-034-8476
NSN 5925-00-735-9379
NSN 6685-00-457-1598
NSN 6240-00-244-0483
NSN 5965-00-096-5171
NSN 5855-01-389-8884
NSN 5999-00-161-4556
NSN 5925-01-263-3846