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 5910-00-472-3662
NSN 6145-00-181-9622
NSN 5930-01-368-3765
NSN 5985-01-198-9029
NSN 6150-01-281-2131
NSN 6135-00-613-1068
NSN 5996-01-248-9699
NSN 5990-00-518-0684
NSN 6620-01-435-0799
NSN 6645-01-521-5637
NSN 5998-01-414-9126
NSN 5925-01-657-4884