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 5945-01-150-0236
NSN 5930-00-942-8342
NSN 5905-00-136-8076
NSN 5925-01-046-4918
NSN 2925-01-350-8372
NSN 6620-00-932-4306
NSN 5925-00-973-0776
NSN 5910-00-343-9585
NSN 6105-01-510-8848
NSN 5998-00-279-0623
NSN 6110-01-169-2816
NSN 5985-01-068-2582