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 5945-01-510-3530
NSN 5945-00-243-9365
NSN 6150-01-212-3003
NSN 6105-01-275-2768
NSN 5930-01-345-7602
NSN 5910-00-898-0623
NSN 5945-01-528-0393
NSN 5855-01-520-5873
NSN 5945-01-109-7324
NSN 4140-01-188-6977
NSN 5935-01-422-3228
NSN 5895-00-238-3294