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 6685-00-678-0567
NSN 5999-01-304-7152
NSN 7035-00-104-7613
NSN 5985-01-061-8828
NSN 4140-00-170-5152
NSN 4140-01-364-1684
NSN 7035-00-320-5644
NSN 5915-01-181-5603
NSN 5990-00-258-0228
NSN 6130-00-959-4181
NSN 5895-01-542-7641
NSN 5905-00-570-5258