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 5975-01-011-5254
NSN 6135-01-627-3786
NSN 5996-01-484-0954
NSN 5950-01-376-7626
NSN 4140-01-420-6508
NSN 5935-01-600-8641
NSN 5920-00-271-3217
NSN 6240-00-635-9953
NSN 6240-01-575-3159
NSN 6645-00-256-4072
NSN 6610-00-758-3486
NSN 5975-01-281-6672