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 5975-01-051-3347
NSN 4140-01-549-6521
NSN 6130-01-384-4391
NSN 6650-01-100-2637
NSN 6145-00-296-0085
NSN 6650-00-680-9595
NSN 5930-01-594-0288
NSN 5960-00-386-8215
NSN 6130-01-124-0815
NSN 5999-01-351-5601
NSN 6240-01-444-3508
NSN 5945-01-273-9790