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 6320-01-116-9866
NSN 5915-01-461-0037
NSN 5925-00-279-6769
NSN 5930-01-332-1324
NSN 5855-01-179-2702
NSN 7035-01-298-5154
NSN 5910-01-003-3254
NSN 5998-01-425-1728
NSN 5905-00-099-9995
NSN 5999-00-500-9377
NSN 5935-01-600-4373
NSN 5990-00-939-0461