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 6685-00-752-4429
NSN 6130-01-218-4710
NSN 5945-01-589-0669
NSN 5930-00-261-3420
NSN 4140-00-648-3303
NSN 6150-01-611-6534
NSN 6645-00-658-7838
NSN 7035-01-591-0850
NSN 6240-00-393-1161
NSN 5920-01-148-4071
NSN 5985-01-455-5747
NSN 5965-00-021-5620