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 6220-01-442-8707
NSN 6135-00-756-6149
NSN 6145-00-836-5654
NSN 6620-01-380-2905
NSN 5996-00-463-1806
NSN 2925-00-084-8462
NSN 5855-01-469-8099
NSN 5910-00-699-1478
NSN 6240-00-351-8564
NSN 2925-00-964-7128
NSN 6650-01-126-3101
NSN 7035-00-300-3208