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 6685-01-255-4039
NSN 5998-01-263-4518
NSN 5965-00-028-9646
NSN 6620-01-352-5640
NSN 5950-00-193-8764
NSN 6650-00-820-4577
NSN 4140-01-384-3998
NSN 6650-01-561-7761
NSN 6135-01-462-6040
NSN 6620-01-443-1214
NSN 5910-00-921-9000
NSN 5965-01-287-7235