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 6650-01-525-7036
NSN 6650-01-112-0453
NSN 6240-00-734-3276
NSN 5925-00-840-5393
NSN 4140-01-407-3287
NSN 6650-00-824-5510
NSN 6130-01-203-4676
NSN 5960-01-261-6753
NSN 5915-00-343-6814
NSN 6320-00-331-7138
NSN 5895-00-720-4148
NSN 4140-01-618-6417