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 5945-01-378-3843
NSN 6135-01-014-9755
NSN 5999-01-383-7253
NSN 6320-00-823-2015
NSN 6135-01-571-0845
NSN 4140-01-643-1899
NSN 2925-01-231-6312
NSN 6135-01-336-3115
NSN 5950-01-045-3064
NSN 5965-00-110-3330
NSN 5996-00-470-5308
NSN 5930-01-512-8724