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 6685-00-995-9385
NSN 5975-01-613-8841
NSN 6145-01-607-6165
NSN 7035-00-908-4933
NSN 6135-01-457-2855
NSN 6135-01-141-4916
NSN 5945-00-217-0983
NSN 5905-00-484-8070
NSN 6145-01-392-8938
NSN 5835-01-248-4320
NSN 5985-01-441-8471
NSN 5925-01-554-2852