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 6620-00-679-5830
NSN 5935-01-219-9710
NSN 6145-01-479-3354
NSN 6220-01-652-1722
NSN 5990-01-557-7784
NSN 5990-01-147-5225
NSN 5855-01-454-5653
NSN 5855-01-359-5727
NSN 6650-01-443-1476
NSN 6130-01-480-7621
NSN 5996-01-176-6373
NSN 6150-00-432-7410