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 5835-01-226-2337
NSN 5960-01-340-1641
NSN 6240-01-086-7521
NSN 6150-00-488-8657
NSN 6685-01-560-2506
NSN 5945-00-469-3516
NSN 6220-01-399-3030
NSN 6685-01-306-8504
NSN 6685-01-317-3782
NSN 6135-01-394-8087
NSN 5960-01-240-3266
NSN 5945-01-400-3557