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 5925-00-933-0172
NSN 5920-00-007-2054
NSN 6130-00-424-7085
NSN 6105-01-542-6846
NSN 6240-00-445-4765
NSN 5855-01-400-1590
NSN 5855-01-350-1257
NSN 6135-01-659-7653
NSN 5930-01-004-2601
NSN 5975-01-351-4279
NSN 6135-00-299-6918
NSN 7035-01-514-2221