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 6130-00-811-3799
NSN 6610-00-329-3534
NSN 6620-01-265-1757
NSN 5998-01-025-5361
NSN 6130-01-400-6123
NSN 7035-01-342-7620
NSN 5915-01-580-0308
NSN 6220-00-507-4740
NSN 6685-01-467-2493
NSN 6135-00-866-2311
NSN 5960-01-223-1203
NSN 5990-01-307-4489