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 5998-01-433-5191
NSN 5835-00-426-2402
NSN 5910-01-386-3191
NSN 6105-01-200-8011
NSN 4140-01-060-2960
NSN 5960-01-155-6839
NSN 5998-00-106-1115
NSN 5990-01-606-9305
NSN 5935-01-257-4474
NSN 6610-01-521-4974
NSN 2925-00-099-4030
NSN 6150-00-146-3746