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 5998-00-375-4259
NSN 5915-01-578-6153
NSN 5920-00-583-2095
NSN 6240-00-686-5345
NSN 5905-01-281-8382
NSN 5990-01-322-9781
NSN 5990-01-646-6149
NSN 6135-00-080-9176
NSN 5930-00-960-8230
NSN 6150-01-167-8315
NSN 6685-00-696-6411
NSN 5998-01-196-5068