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 6685-01-158-3477
NSN 6620-01-207-0667
NSN 5960-01-354-0762
NSN 5915-01-644-3329
NSN 5996-01-659-9365
NSN 5920-00-526-9238
NSN 4140-01-215-1125
NSN 5950-01-556-7989
NSN 5960-01-469-5874
NSN 5925-01-089-9791
NSN 5855-00-937-7709
NSN 5960-00-139-9416