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 5925-01-168-1801
NSN 5965-01-221-0569
NSN 6685-00-150-2779
NSN 2925-01-495-1178
NSN 6685-00-403-1226
NSN 5990-00-324-4454
NSN 4140-00-482-2668
NSN 5835-01-229-6964
NSN 6685-01-613-7938
NSN 5999-01-634-0576
NSN 6240-00-136-2602
NSN 5950-01-172-1791