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 6145-00-508-8353
NSN 6645-01-121-6952
NSN 5895-01-178-0523
NSN 5910-01-168-8008
NSN 5950-01-454-2916
NSN 5910-00-873-2734
NSN 5895-01-139-2886
NSN 5910-00-646-5251
NSN 6220-01-317-3283
NSN 5945-01-340-0604
NSN 6150-00-846-2119
NSN 6620-01-447-4607