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 5915-00-034-4824
NSN 5996-01-565-1059
NSN 5855-01-449-8685
NSN 7035-00-020-2227
NSN 5930-00-343-8832
NSN 2925-01-362-2515
NSN 5999-01-268-3786
NSN 6645-01-366-4344
NSN 5930-01-149-3088
NSN 6685-01-531-3339
NSN 7035-00-981-7216
NSN 5985-01-159-4756