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 7035-01-029-7221
NSN 5895-00-902-1415
NSN 5930-01-139-6963
NSN 5999-00-549-9955
NSN 6685-01-533-0942
NSN 6135-01-510-9986
NSN 6130-01-442-8295
NSN 2925-00-869-1451
NSN 2925-01-424-0235
NSN 5996-00-324-8952
NSN 5910-00-725-9722
NSN 6645-00-016-0594