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 5945-01-245-7748
NSN 5915-01-586-6740
NSN 6110-00-986-0971
NSN 5950-00-915-6514
NSN 2925-01-259-7092
NSN 6220-01-418-5085
NSN 6105-01-398-7495
NSN 6130-00-457-0593
NSN 6240-01-050-8306
NSN 5965-01-142-8044
NSN 6130-00-296-0283
NSN 7035-01-021-1413