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 6645-01-407-0204
NSN 6145-01-519-8210
NSN 5915-01-586-7934
NSN 5935-00-044-4195
NSN 5965-00-170-5254
NSN 6650-00-071-8184
NSN 5920-01-485-3788
NSN 6240-00-947-2006
NSN 6105-01-214-8870
NSN 6130-01-152-6718
NSN 5895-01-503-2979
NSN 5975-00-577-3765