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 4140-01-463-3982
NSN 6220-01-446-6228
NSN 5920-01-510-3933
NSN 6240-01-182-1895
NSN 5920-00-969-2350
NSN 5990-00-633-7634
NSN 5855-00-361-0167
NSN 5835-00-016-3671
NSN 5835-01-464-7038
NSN 6105-00-867-0176
NSN 6685-01-080-4582
NSN 6645-00-017-8252