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 6220-01-102-3580
NSN 5835-01-360-2657
NSN 6650-01-555-7384
NSN 6150-01-628-2272
NSN 5855-01-187-2293
NSN 5965-01-164-0561
NSN 5950-00-170-8731
NSN 6150-01-494-7880
NSN 5835-00-092-1136
NSN 2925-00-290-7052
NSN 5905-01-200-9495
NSN 6645-01-629-0847