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 6130-01-633-8860
NSN 5999-01-246-0343
NSN 6240-01-428-9410
NSN 6620-01-495-7446
NSN 5945-01-300-1812
NSN 6220-01-366-6076
NSN 6130-00-983-5539
NSN 6145-01-104-5084
NSN 5998-00-296-8848
NSN 6220-00-366-1670
NSN 6320-00-977-3930
NSN 5950-00-472-3193