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 5925-01-090-4112
NSN 6135-01-608-2092
NSN 5835-01-552-7135
NSN 5935-01-037-4262
NSN 7035-01-246-9936
NSN 2925-01-161-7440
NSN 6150-01-457-0693
NSN 6145-00-815-1369
NSN 5920-01-418-0863
NSN 2925-01-643-8395
NSN 6620-01-598-2271
NSN 6130-01-423-1383