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 5996-01-010-8609
NSN 5920-00-480-5250
NSN 5925-01-583-9128
NSN 6685-01-391-4402
NSN 5835-01-416-6455
NSN 6110-01-336-6676
NSN 5965-01-441-8826
NSN 5920-00-840-7313
NSN 5855-01-480-6386
NSN 6610-01-533-2935
NSN 5960-01-327-9536
NSN 6645-01-387-4811