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 6150-01-438-7297
NSN 6645-01-126-3969
NSN 5965-00-189-9394
NSN 5960-00-452-6043
NSN 5975-01-358-6418
NSN 7035-01-107-2811
NSN 5895-00-614-5879
NSN 5905-01-519-2577
NSN 5998-01-519-1191
NSN 6145-01-503-0487
NSN 6240-01-221-9093
NSN 5990-01-384-2697