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 5915-01-153-2417
NSN 6610-01-397-6965
NSN 5920-01-291-1512
NSN 2925-01-424-0235
NSN 2925-01-089-6269
NSN 6650-01-254-0491
NSN 6240-01-046-2677
NSN 6150-00-733-4035
NSN 6645-00-368-8636
NSN 5935-00-203-1991
NSN 6145-01-090-5648
NSN 5915-01-359-2573