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 5990-00-964-6422
NSN 6320-01-015-9856
NSN 6610-00-614-7943
NSN 5855-00-138-2386
NSN 5998-01-433-1155
NSN 5945-00-007-1995
NSN 6220-00-371-7589
NSN 7035-01-438-2108
NSN 5855-01-492-6385
NSN 2925-00-075-2714
NSN 6240-01-599-2679
NSN 6620-01-560-7832