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 6645-01-578-6815
NSN 6620-01-069-0912
NSN 6645-01-363-9790
NSN 6620-01-159-4330
NSN 5985-01-136-4577
NSN 5925-01-587-8004
NSN 6320-01-340-4112
NSN 6145-01-292-8719
NSN 5910-01-628-8058
NSN 5996-00-204-6364
NSN 6135-01-379-1697
NSN 5835-01-531-0379