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 5985-00-835-1218
NSN 5985-01-205-4756
NSN 2925-01-259-7092
NSN 6130-00-296-4116
NSN 6145-00-178-8830
NSN 5905-00-633-1652
NSN 5945-01-569-4852
NSN 6145-01-567-3186
NSN 6240-01-226-2902
NSN 6110-00-379-9693
NSN 6685-00-809-2846
NSN 6150-01-439-7249