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 5945-01-446-2560
NSN 5985-01-059-1188
NSN 5950-00-905-6887
NSN 5965-00-146-8588
NSN 5960-00-219-6148
NSN 5910-01-089-9201
NSN 5996-01-460-4396
NSN 5996-01-411-1841
NSN 5945-00-879-8306
NSN 5835-00-491-3834
NSN 6110-00-883-3505
NSN 5905-01-462-2194