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 6145-00-500-5161
NSN 5895-00-359-3834
NSN 5925-00-315-2238
NSN 5990-00-578-8850
NSN 5999-01-425-0016
NSN 6685-01-311-6833
NSN 5945-00-276-9261
NSN 5930-01-084-2971
NSN 5999-01-194-4496
NSN 4140-00-376-5712
NSN 6135-01-010-0891
NSN 4140-00-592-3318