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 6135-01-528-6896
NSN 5855-01-446-0527
NSN 6220-01-208-4429
NSN 5945-01-071-7224
NSN 5920-01-153-7487
NSN 6240-00-003-6435
NSN 6320-01-600-5808
NSN 2925-00-827-2326
NSN 5999-00-751-1188
NSN 5975-01-305-5245
NSN 5915-00-802-0309
NSN 5990-01-458-2531