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 5925-01-069-2201
NSN 5925-00-241-6549
NSN 2925-01-089-6269
NSN 2925-01-372-9455
NSN 7035-01-004-8819
NSN 6105-00-834-5234
NSN 5985-01-099-9294
NSN 6645-01-458-8379
NSN 5935-01-398-9114
NSN 6110-00-150-7844
NSN 5985-01-203-9484
NSN 5975-00-290-4285