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 5930-01-437-6156
NSN 6145-01-452-3604
NSN 6650-00-518-5194
NSN 6145-01-186-7734
NSN 6150-01-357-8428
NSN 5925-01-302-0364
NSN 5915-01-604-9868
NSN 5950-00-053-5529
NSN 6685-01-022-2342
NSN 5855-01-358-5253
NSN 6685-00-527-6545
NSN 5855-01-479-3152