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 6645-01-264-4093
NSN 5985-00-471-9355
NSN 5905-00-997-2215
NSN 5855-00-198-3197
NSN 5990-01-177-2838
NSN 5935-01-642-7839
NSN 6650-01-130-6799
NSN 5998-00-501-2495
NSN 6650-01-470-1315
NSN 6130-00-242-0119
NSN 5999-00-148-4310
NSN 5915-01-249-3113