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 5915-01-482-5502
NSN 6685-00-171-9815
NSN 5999-00-144-7698
NSN 5905-01-065-0696
NSN 6320-01-607-1491
NSN 5855-01-610-9321
NSN 6620-00-506-0112
NSN 5925-00-186-8669
NSN 7035-01-137-6206
NSN 5855-00-167-7893
NSN 5945-00-247-9540
NSN 5855-00-862-3345