Description: Unique number and letter combination assigned by the manufacturer to identify the device for the order; Name: Manufacturer order code
Description: by manufactures issued unique combination of numbers and letters used to identify the device for ordering; Name: order code of manufacturer
Description: Ten times the logarithm to the base 10 of the ratio of the square of the sound pressure, p, to the square of a reference value, p0, expressed in decibels; Name: Sound pressure level