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 6685-01-536-5279
NSN 6150-01-482-5037
NSN 5835-00-660-4523
NSN 7035-00-152-0055
NSN 6130-01-423-1630
NSN 5998-01-651-7656
NSN 5895-00-079-1314
NSN 5910-01-283-1762
NSN 6105-01-649-3569
NSN 6240-00-557-7471
NSN 5965-00-289-6280
NSN 5935-01-607-6277