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 6685-01-349-4450
NSN 5985-00-253-6676
NSN 6220-01-614-0811
NSN 6110-01-370-2067
NSN 5998-01-372-3725
NSN 6135-00-477-8847
NSN 2925-00-234-7918
NSN 6130-01-628-0888
NSN 5930-01-094-9819
NSN 5965-00-233-3851
NSN 5985-00-961-4620
NSN 5935-00-816-5276