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 5930-01-036-9510
NSN 6130-01-134-5454
NSN 5930-00-006-2247
NSN 2925-00-149-0760
NSN 6135-00-152-8729
NSN 5998-01-202-9379
NSN 5960-01-094-5958
NSN 5985-01-204-4503
NSN 5990-00-949-0166
NSN 5975-00-353-5589
NSN 5920-01-557-4500
NSN 5996-00-895-7951