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 5950-01-236-5663
NSN 5975-00-770-5634
NSN 5915-01-604-7157
NSN 6240-00-284-1457
NSN 5999-00-719-9664
NSN 5835-00-257-2852
NSN 7035-01-132-4034
NSN 5920-01-333-1314
NSN 6685-01-329-1036
NSN 6610-00-225-9886
NSN 5930-01-601-5034
NSN 5905-01-359-4050