Critical application
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 5998-00-035-5308
NSN 5950-01-485-2595
NSN 5920-00-819-0099
NSN 5965-01-504-2340
NSN 5998-01-497-2271
NSN 5835-01-051-7584
NSN 6320-01-484-7734
NSN 2925-01-041-8201
NSN 5935-01-474-6892
NSN 5935-00-985-5448
NSN 5945-01-329-1150
NSN 6130-01-039-0501