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 6645-00-845-1071
NSN 5895-01-360-4529
NSN 4140-00-195-7336
NSN 6135-01-436-7733
NSN 2925-01-197-7864
NSN 6220-01-068-4066
NSN 5965-01-331-8708
NSN 6240-00-239-0159
NSN 5905-01-487-7241
NSN 5965-01-482-4352
NSN 6105-01-462-0140
NSN 5960-01-013-9346