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 5950-01-652-6410
NSN 5950-00-218-1362
NSN 2925-01-323-4235
NSN 5835-01-235-0391
NSN 6240-01-587-9080
NSN 5985-01-042-3426
NSN 5920-01-165-5187
NSN 5999-00-284-8403
NSN 5990-00-814-2533
NSN 5945-01-645-9408
NSN 6150-01-197-7716
NSN 6110-01-648-2637