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 2925-01-643-8395
NSN 6150-00-398-0833
NSN 6620-01-483-1138
NSN 6240-00-905-6050
NSN 5935-01-004-7629
NSN 6220-01-221-7209
NSN 6320-01-547-2743
NSN 6105-01-627-7765
NSN 5895-00-100-1216
NSN 5855-01-103-8650
NSN 6150-01-004-0855
NSN 5985-01-555-7120