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 6610-01-113-2726
NSN 5920-00-362-1376
NSN 6130-01-239-5514
NSN 6610-00-033-8719
NSN 5975-01-422-0154
NSN 5920-00-182-9948
NSN 5920-01-215-4741
NSN 5915-00-303-4168
NSN 6610-00-506-0093
NSN 6145-01-306-7940
NSN 6110-00-353-0139
NSN 6105-00-106-6447