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 5905-00-025-0656
NSN 5895-00-466-3100
NSN 6685-01-644-5041
NSN 5925-01-013-7119
NSN 5960-01-613-6132
NSN 5930-01-381-7708
NSN 5960-00-529-2704
NSN 6110-00-601-8922
NSN 5835-01-209-6410
NSN 6135-01-505-1293
NSN 6240-00-201-1200
NSN 6320-00-931-4855