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 6320-00-405-2348
NSN 6135-01-140-8201
NSN 6135-01-398-5922
NSN 5945-00-446-4345
NSN 5915-00-476-4565
NSN 6685-01-173-7866
NSN 6135-01-466-3980
NSN 6240-00-006-0350
NSN 7035-00-117-0418
NSN 5915-00-553-8755
NSN 5925-00-248-5734
NSN 6145-01-282-3464