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 5950-01-190-4759
NSN 6685-01-384-2276
NSN 5855-01-147-6024
NSN 7035-01-463-3368
NSN 5895-01-113-7224
NSN 6150-01-516-9249
NSN 5925-01-202-0980
NSN 5950-00-163-9398
NSN 6220-00-466-2681
NSN 6135-00-833-9909
NSN 6135-01-407-0594
NSN 6135-01-445-6589