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 5905-01-289-7665
NSN 6130-01-307-9918
NSN 6110-00-269-2696
NSN 6150-01-364-0053
NSN 5915-00-576-6395
NSN 6105-00-868-6641
NSN 6135-01-602-3042
NSN 5925-00-030-4943
NSN 5905-01-603-3633
NSN 7035-01-421-4446
NSN 6135-01-432-6201
NSN 5998-00-507-3765