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 6110-01-585-6337
NSN 5998-01-264-0461
NSN 6110-00-740-1566
NSN 5925-01-478-2040
NSN 6620-01-444-4048
NSN 6240-00-578-7894
NSN 6145-00-141-8095
NSN 5998-01-464-8766
NSN 5925-00-403-4061
NSN 5950-01-549-3148
NSN 5975-00-612-1998
NSN 5950-01-254-8224