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 5945-01-412-8428
NSN 6150-01-347-8428
NSN 5990-01-654-6203
NSN 5945-00-481-5896
NSN 2925-01-483-2389
NSN 6645-00-183-8812
NSN 5930-01-382-6967
NSN 6105-01-579-2813
NSN 5835-01-384-3206
NSN 6110-01-386-1536
NSN 6650-00-158-3683
NSN 5999-01-271-4678