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 5985-00-935-8653
NSN 4140-01-020-6026
NSN 5965-00-372-2537
NSN 4140-00-798-9144
NSN 4140-01-359-5742
NSN 5996-01-212-9866
NSN 6320-01-618-7800
NSN 6620-01-265-8629
NSN 5855-00-487-9691
NSN 6105-01-042-4792
NSN 5920-00-539-7847
NSN 5905-01-378-6079