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 5965-01-227-4517
NSN 5935-00-537-4778
NSN 5925-01-259-8697
NSN 6130-01-627-7318
NSN 6240-00-415-6488
NSN 6110-01-643-4286
NSN 6130-00-866-3469
NSN 5999-01-290-7259
NSN 5998-01-327-4261
NSN 5985-01-077-2422
NSN 5990-01-203-6089
NSN 5975-00-539-7300