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 7035-00-155-9513
NSN 5835-01-495-0595
NSN 5985-00-767-6315
NSN 5960-00-429-9488
NSN 6620-00-068-2503
NSN 6320-01-473-3848
NSN 5895-00-820-1997
NSN 6645-00-883-8086
NSN 6610-01-400-3880
NSN 6220-00-606-6119
NSN 5920-00-562-7439
NSN 6610-01-052-0803