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 6135-00-505-0679
NSN 5998-01-299-1224
NSN 6110-00-249-7914
NSN 6110-01-020-8844
NSN 5895-00-383-5849
NSN 5930-00-061-2357
NSN 6145-01-514-7737
NSN 6685-01-165-0576
NSN 6110-00-078-8565
NSN 5998-01-462-1171
NSN 6240-00-594-7138
NSN 5990-01-162-9220