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 5950-01-317-3891
NSN 5990-01-486-2556
NSN 5950-01-484-8753
NSN 6645-00-857-0410
NSN 6320-01-583-6809
NSN 6220-01-512-2028
NSN 5925-01-320-1609
NSN 5950-00-597-8644
NSN 5965-01-226-7077
NSN 6105-01-287-9756
NSN 5975-00-169-9062
NSN 5855-01-418-2962