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 6320-00-506-2314
NSN 5999-00-971-2361
NSN 6105-01-550-3286
NSN 5915-00-212-7970
NSN 5855-01-109-6433
NSN 2925-01-503-6792
NSN 6240-00-929-8574
NSN 6620-01-110-6803
NSN 6610-00-142-9678
NSN 5960-00-240-7727
NSN 6240-00-929-8003
NSN 6105-00-553-8943