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 5915-01-531-5065
NSN 6220-01-145-4993
NSN 5905-01-571-7949
NSN 5895-01-070-9947
NSN 5895-00-092-1476
NSN 6220-00-212-4386
NSN 5975-00-926-3073
NSN 5945-00-660-4051
NSN 5910-00-600-3436
NSN 5895-01-070-4599
NSN 6645-00-538-2904
NSN 6130-01-322-6772