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 6320-00-369-7796
NSN 6240-00-869-5079
NSN 5996-01-360-5635
NSN 5985-01-657-3452
NSN 6685-01-441-2198
NSN 6150-01-421-2543
NSN 6110-00-081-6335
NSN 5945-00-428-3668
NSN 5975-01-464-2867
NSN 6620-01-327-4111
NSN 5945-00-702-2641
NSN 6135-01-390-1841