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 6145-01-120-9672
NSN 5930-01-070-3523
NSN 6110-01-407-1353
NSN 6240-01-384-3887
NSN 5996-00-020-2850
NSN 6150-00-416-2045
NSN 5965-01-506-3320
NSN 5925-00-058-7941
NSN 6620-00-062-9722
NSN 5975-00-136-1254
NSN 6645-00-472-4048
NSN 5835-01-486-4191