Critical application
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 5935-01-122-5652
NSN 5905-01-262-6121
NSN 5920-00-975-5011
NSN 4140-00-109-5137
NSN 6645-00-842-4653
NSN 6220-00-583-9889
NSN 5930-00-583-9919
NSN 5998-01-115-5027
NSN 6240-01-057-5822
NSN 5915-01-368-1168
NSN 5985-01-381-1018
NSN 6135-01-238-2878