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 5905-00-214-3477
NSN 5930-01-422-4262
NSN 6645-01-571-8578
NSN 6220-01-548-1147
NSN 6240-01-119-5978
NSN 7035-01-472-1999
NSN 2925-01-550-0177
NSN 5975-00-923-3984
NSN 5998-00-833-5510
NSN 4140-01-168-6157
NSN 5930-01-068-2710
NSN 5925-01-260-9384