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 6135-01-656-0761
NSN 6145-01-484-8735
NSN 5935-01-526-8943
NSN 5965-00-263-1226
NSN 5895-01-383-7982
NSN 5990-01-320-1412
NSN 6220-01-466-5084
NSN 5930-01-025-5540
NSN 5905-01-421-4131
NSN 6220-00-557-8861
NSN 2925-00-734-0516
NSN 5996-01-377-9730