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 5920-01-020-7659
NSN 5935-01-421-1802
NSN 5905-01-243-1784
NSN 6220-01-426-5579
NSN 6135-01-419-0779
NSN 5960-00-669-9793
NSN 6610-00-697-0737
NSN 5835-01-209-6410
NSN 5835-01-435-4139
NSN 6110-01-424-0078
NSN 5915-00-070-1850
NSN 6130-01-593-4278