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 5835-00-901-4932
NSN 6110-01-120-9705
NSN 6650-00-315-2397
NSN 6685-01-130-9401
NSN 6610-01-453-1610
NSN 5925-00-116-8706
NSN 5999-00-818-4935
NSN 6220-00-420-6306
NSN 6320-01-227-2648
NSN 6610-01-122-0064
NSN 5990-00-170-9553
NSN 5895-00-356-6335