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 5950-01-157-9482
NSN 6650-01-005-0714
NSN 7035-01-423-8343
NSN 6150-01-371-7338
NSN 5990-00-554-0366
NSN 6645-00-566-5537
NSN 6685-01-121-3728
NSN 4140-01-108-0988
NSN 6645-01-563-6563
NSN 5996-01-307-4403
NSN 6610-01-188-1550
NSN 6240-01-414-6074