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 6610-01-092-9846
NSN 5965-01-029-5222
NSN 6110-01-306-4755
NSN 5935-01-464-3308
NSN 6240-01-511-1009
NSN 5999-01-266-7920
NSN 5930-01-154-5100
NSN 7035-01-366-5912
NSN 6620-01-438-0415
NSN 5965-01-189-4805
NSN 5950-00-972-1312
NSN 5910-00-581-2986