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 5895-00-653-4227
NSN 6320-01-388-1067
NSN 6135-01-379-1697
NSN 5999-01-129-4872
NSN 5930-00-711-5958
NSN 6645-01-632-2272
NSN 6130-00-222-5291
NSN 5999-00-186-0058
NSN 5975-01-156-0650
NSN 5965-01-051-0126
NSN 5996-00-481-5025
NSN 7035-00-500-7839