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 6320-01-125-3361
NSN 6645-01-089-6459
NSN 6650-01-460-5837
NSN 6110-00-463-6158
NSN 6320-01-157-9076
NSN 6135-01-481-5899
NSN 6150-01-541-6243
NSN 5855-00-973-5717
NSN 6650-01-645-2850
NSN 5925-01-437-8384
NSN 6135-00-271-0407
NSN 5945-00-398-1072