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 5895-00-827-0240
NSN 5950-01-111-9085
NSN 5965-01-226-5006
NSN 6135-01-503-1688
NSN 6135-00-087-5300
NSN 2925-00-231-8041
NSN 5910-01-027-9107
NSN 5945-01-114-3277
NSN 5835-01-647-6426
NSN 5935-01-362-9996
NSN 5996-00-078-7515
NSN 5998-01-139-5286