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 6145-01-113-8205
NSN 5915-01-352-1274
NSN 5895-01-046-2001
NSN 5985-00-008-2032
NSN 5925-00-001-5977
NSN 6105-01-406-2077
NSN 5960-01-495-0859
NSN 6240-00-984-3354
NSN 6610-00-704-2249
NSN 6145-01-456-2513
NSN 5990-01-368-2604
NSN 5925-01-643-7771