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 5965-01-523-2240
NSN 6620-01-415-5803
NSN 5990-00-254-4825
NSN 5999-00-061-9786
NSN 5998-01-542-8869
NSN 5920-01-312-8106
NSN 6620-01-280-9478
NSN 6685-01-654-6807
NSN 5975-00-665-3644
NSN 6685-00-706-9562
NSN 6320-01-229-6479
NSN 5960-01-504-3415