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 5990-01-411-5930
NSN 5915-01-145-7763
NSN 6685-01-534-8882
NSN 5930-01-034-0135
NSN 5915-01-294-3694
NSN 6320-01-399-6177
NSN 6145-01-210-7992
NSN 5950-01-236-7598
NSN 6685-00-024-1109
NSN 6105-01-418-3070
NSN 5950-00-155-4753
NSN 5910-01-155-7117