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 6145-00-494-2847
NSN 5925-00-529-0441
NSN 6220-01-365-5512
NSN 6645-01-167-5814
NSN 5950-01-132-6433
NSN 2925-01-544-4880
NSN 6105-01-136-5978
NSN 6220-01-428-8944
NSN 6130-00-116-3981
NSN 6645-01-448-0622
NSN 5996-00-267-1139
NSN 5998-01-339-5911