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 6610-01-541-4464
NSN 6320-01-232-4664
NSN 6150-01-375-3570
NSN 6110-01-145-8113
NSN 6320-00-937-5625
NSN 5905-00-820-3117
NSN 5935-01-097-7818
NSN 6320-00-300-5556
NSN 6240-01-176-9037
NSN 6685-01-089-9606
NSN 5910-01-204-6848
NSN 5925-01-488-5663