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 5925-00-290-4451
NSN 6320-00-857-4073
NSN 5950-00-068-4277
NSN 6145-00-959-0097
NSN 5910-01-181-6650
NSN 6645-00-892-5750
NSN 6105-00-197-8671
NSN 6105-01-301-7159
NSN 5975-01-150-6192
NSN 6150-01-251-2461
NSN 6145-00-594-7822
NSN 6130-01-299-6849