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 5960-01-068-2671
NSN 7035-01-267-3475
NSN 5905-00-074-1398
NSN 6685-01-418-0925
NSN 6610-00-030-2461
NSN 5998-00-619-8577
NSN 6685-00-269-6444
NSN 5975-01-004-7966
NSN 2925-01-412-9520
NSN 6105-00-317-5688
NSN 5895-01-569-2931
NSN 5998-01-061-4860