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 5990-00-513-5328
NSN 5935-01-473-5273
NSN 6650-00-254-8966
NSN 6685-01-500-1810
NSN 6240-01-218-3828
NSN 5855-01-149-4110
NSN 5835-01-480-3484
NSN 5998-00-299-2740
NSN 5915-01-324-3881
NSN 7035-01-102-8111
NSN 6645-00-850-6486
NSN 2925-00-532-1481