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 5925-01-089-9791
NSN 5910-00-313-7206
NSN 6240-01-214-4805
NSN 6620-00-246-5159
NSN 5950-01-164-8468
NSN 6240-00-727-6423
NSN 5950-00-203-2368
NSN 6685-01-490-6353
NSN 5910-01-605-9524
NSN 5950-00-628-3098
NSN 6150-01-498-5032
NSN 2925-00-081-3547