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 2925-01-094-4771
NSN 6110-01-467-9074
NSN 5975-00-514-8614
NSN 6240-01-351-6729
NSN 6130-01-381-6094
NSN 6150-00-245-5931
NSN 6620-01-365-1499
NSN 6645-01-408-6568
NSN 5998-01-008-0940
NSN 7035-01-585-8350
NSN 5930-01-150-1028
NSN 5925-00-109-2231