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 6220-01-214-9896
NSN 6220-01-387-9433
NSN 6650-01-369-8733
NSN 6610-00-318-8540
NSN 5835-01-317-4840
NSN 6650-01-399-0628
NSN 5998-01-533-4242
NSN 5985-00-056-2436
NSN 5920-00-655-1154
NSN 5945-01-528-4052
NSN 5930-01-492-0208
NSN 6150-00-864-8125