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 5925-00-246-4645
NSN 2925-00-991-4499
NSN 5905-01-513-1877
NSN 5996-01-325-7897
NSN 5835-01-432-6185
NSN 6220-01-292-0980
NSN 5905-01-522-3498
NSN 5915-01-215-1473
NSN 5895-01-474-1327
NSN 5925-01-208-4061
NSN 6110-00-923-1295
NSN 6220-00-181-9698