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 5910-00-473-5755
NSN 5910-00-105-7536
NSN 2925-01-496-4699
NSN 6620-00-982-6855
NSN 5855-01-250-2421
NSN 6610-01-288-6103
NSN 5905-00-320-8284
NSN 5960-00-091-8729
NSN 6130-00-896-0046
NSN 5925-01-429-0392
NSN 5999-00-360-3160
NSN 5985-01-521-3230