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 5945-01-337-0816
NSN 2925-01-359-4027
NSN 6145-01-370-4485
NSN 6105-01-276-4816
NSN 7035-00-020-2227
NSN 5935-01-296-2775
NSN 6685-01-370-1770
NSN 5999-01-032-5408
NSN 5960-01-503-0362
NSN 6685-01-367-9474
NSN 5895-00-415-1251
NSN 5920-01-528-8136