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 6150-01-004-9632
NSN 5930-01-070-5636
NSN 5985-01-100-8904
NSN 6220-00-244-2040
NSN 5945-01-643-7759
NSN 5975-00-830-6074
NSN 5999-01-214-6802
NSN 5985-01-312-5855
NSN 5930-00-912-3347
NSN 5895-00-104-8294
NSN 6145-00-643-4962
NSN 7035-01-413-6697