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 4140-01-441-2339
NSN 6685-01-100-3012
NSN 5975-00-021-0707
NSN 5996-01-512-0800
NSN 6135-01-322-4655
NSN 5835-01-384-3206
NSN 5915-00-636-9785
NSN 5990-00-407-4473
NSN 6150-00-220-5154
NSN 5999-01-322-4906
NSN 6240-01-383-8579
NSN 5950-00-156-1111