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 5920-00-149-0013
NSN 5920-00-798-5710
NSN 6105-01-101-5357
NSN 5945-00-422-5330
NSN 5960-01-391-4701
NSN 6620-01-323-5275
NSN 6130-01-604-8061
NSN 5990-01-411-5930
NSN 6610-00-216-6538
NSN 6240-01-242-0150
NSN 5920-00-513-4546
NSN 7035-01-173-5503