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 6105-00-196-0061
NSN 5975-01-185-0953
NSN 6135-01-377-5729
NSN 2925-01-519-3221
NSN 4140-01-094-1621
NSN 2925-01-290-8208
NSN 6320-01-229-6479
NSN 5915-01-116-2932
NSN 6110-01-419-2722
NSN 5990-01-475-8708
NSN 6320-01-230-8444
NSN 6610-01-093-4710