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 6685-01-398-0653
NSN 6220-00-246-7245
NSN 6150-01-222-4135
NSN 5930-00-175-9368
NSN 5950-01-467-9998
NSN 6150-01-084-9866
NSN 5975-00-259-9752
NSN 7035-01-096-8912
NSN 5960-01-378-1729
NSN 5985-01-113-7113
NSN 5960-00-891-8882
NSN 5910-01-327-3330