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 2925-01-116-6838
NSN 5935-00-217-8847
NSN 7035-00-679-9027
NSN 5990-01-605-4769
NSN 5950-01-502-2432
NSN 5905-01-003-9660
NSN 5960-00-133-2475
NSN 5975-01-591-1577
NSN 5960-01-447-7074
NSN 5985-01-654-3123
NSN 6150-00-243-9531
NSN 5925-00-703-3627