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 6145-01-528-9655
NSN 6610-01-362-7208
NSN 6645-00-225-2742
NSN 6145-00-466-4068
NSN 5925-00-403-4061
NSN 7035-00-185-8683
NSN 5895-01-483-0928
NSN 6240-01-074-6962
NSN 6240-00-167-2467
NSN 6240-00-677-0305
NSN 6650-01-433-3520
NSN 7035-00-541-8516