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 6220-01-461-9180
NSN 5855-00-782-7714
NSN 5965-00-811-3793
NSN 5945-01-299-3812
NSN 5855-01-552-4759
NSN 5915-01-585-6388
NSN 5990-00-470-2535
NSN 5905-01-333-6673
NSN 5985-00-852-6192
NSN 6145-01-480-2208
NSN 5920-01-338-0707
NSN 5985-01-594-1515