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 5960-00-403-4617
NSN 5975-01-619-3238
NSN 5935-01-206-4432
NSN 5985-01-653-1722
NSN 6130-01-099-1619
NSN 6150-00-100-1302
NSN 5985-00-093-7949
NSN 5855-00-150-1820
NSN 7035-00-490-0485
NSN 5910-01-501-6192
NSN 6240-01-624-7525
NSN 6130-01-343-4078