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 5960-00-334-4954
NSN 6220-01-044-5552
NSN 6130-01-040-0086
NSN 5895-01-468-0936
NSN 5925-00-930-8948
NSN 5985-01-228-0530
NSN 6645-01-242-8371
NSN 5895-01-435-4386
NSN 5965-01-304-3638
NSN 5855-01-458-5163
NSN 5999-01-485-8805
NSN 5975-01-151-0299