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 6150-01-422-2013
NSN 6685-01-641-5357
NSN 6645-01-529-4411
NSN 5935-01-549-2231
NSN 5895-01-260-5581
NSN 5855-00-951-6483
NSN 5835-00-033-0294
NSN 5855-00-466-2309
NSN 5920-01-594-2424
NSN 5950-00-991-0825
NSN 6650-00-891-9850
NSN 6610-01-200-4610