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 6105-00-149-7956
NSN 5945-01-192-3800
NSN 6610-00-180-4565
NSN 5835-00-233-6327
NSN 5915-01-567-3777
NSN 6620-01-556-9452
NSN 6610-01-180-5544
NSN 5910-01-510-9454
NSN 5990-01-407-6615
NSN 6610-00-247-9692
NSN 6320-01-425-1417
NSN 2925-01-424-0235