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 7035-01-392-9838
NSN 5835-01-075-9884
NSN 6110-00-011-9591
NSN 4140-01-656-8267
NSN 5910-01-561-7025
NSN 5990-00-226-1152
NSN 5990-00-079-2903
NSN 6110-01-462-6013
NSN 6110-01-633-9660
NSN 6150-01-648-6664
NSN 6620-01-529-7513
NSN 5905-01-574-9195