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 5920-01-590-9191
NSN 6220-01-235-2353
NSN 5930-00-311-6963
NSN 5915-00-400-3372
NSN 6620-01-054-9346
NSN 5975-01-012-1993
NSN 2925-01-333-6346
NSN 5935-00-407-2933
NSN 5895-01-012-2202
NSN 6240-00-635-9953
NSN 5835-00-235-6960
NSN 6130-00-883-4712