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 2925-01-315-1714
NSN 6685-01-378-7090
NSN 6150-01-017-7688
NSN 6110-01-422-1572
NSN 6145-00-894-3434
NSN 5990-01-287-9447
NSN 5950-01-063-0326
NSN 5945-00-792-2572
NSN 2925-00-497-7808
NSN 5930-00-321-0435
NSN 6130-00-186-8460
NSN 5910-01-555-7751