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 4140-01-026-2304
NSN 6620-01-466-4436
NSN 5910-00-990-8349
NSN 5915-01-363-7347
NSN 5985-01-641-6152
NSN 4140-01-528-7945
NSN 6150-00-085-7752
NSN 5975-00-731-1249
NSN 7035-00-179-3924
NSN 6150-01-432-1020
NSN 6130-00-518-1723
NSN 6105-00-161-1834