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 5996-00-553-7348
NSN 5975-01-235-4760
NSN 5835-00-491-3834
NSN 6645-01-462-3754
NSN 5960-01-056-4167
NSN 5855-00-451-6155
NSN 6150-00-965-8351
NSN 6610-00-134-2260
NSN 5920-00-998-5958
NSN 4140-01-171-7013
NSN 5915-00-614-6173
NSN 6240-01-549-7138