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 5835-00-089-0588
NSN 6645-00-702-4386
NSN 6320-00-070-4544
NSN 6645-01-215-9938
NSN 5925-00-729-7750
NSN 5910-01-596-2780
NSN 5990-00-288-1820
NSN 4140-00-816-7049
NSN 5998-01-645-4088
NSN 5950-01-654-6388
NSN 6130-01-621-4384
NSN 5998-01-589-6741