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 5985-01-391-1685
NSN 5930-01-151-5156
NSN 5855-00-904-9572
NSN 6685-00-469-0474
NSN 5996-01-425-1182
NSN 4140-00-971-5705
NSN 5990-01-453-3552
NSN 5960-01-023-2815
NSN 5965-01-495-1170
NSN 5920-01-168-7810
NSN 2925-00-240-0831
NSN 5950-00-451-3926