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 6150-00-138-6726
NSN 6685-01-197-7386
NSN 6650-00-034-8438
NSN 6145-01-356-7641
NSN 6650-01-067-8946
NSN 5925-01-010-2925
NSN 2925-00-495-8130
NSN 5996-01-328-7454
NSN 6645-01-462-2101
NSN 5985-00-446-6132
NSN 5925-01-476-8913
NSN 5996-01-123-9038