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 5910-00-611-0530
NSN 5998-01-045-9943
NSN 5915-01-148-3147
NSN 5999-01-451-2415
NSN 5910-01-278-9009
NSN 6150-00-058-8669
NSN 6240-00-333-5627
NSN 5960-01-315-3021
NSN 6105-01-018-8355
NSN
NSN 5920-00-117-8280
NSN 6130-00-573-5736