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 2925-01-608-1888
NSN 6220-01-082-8769
NSN 6645-01-290-3930
NSN 6320-01-255-2096
NSN 5915-01-461-9190
NSN 5985-00-192-3956
NSN 5999-01-414-6464
NSN 6685-01-487-5350
NSN 6135-01-201-5858
NSN 7035-01-495-7134
NSN 5965-00-144-2543
NSN 5996-00-617-1676