Check the listing for details. calibration mic. Condition: Used. Listed at 12.00 USD. The calibration mic is a precise and essential tool used to measure sound levels accurately. It is designed for professional use in various industrial and business settings where accurate sound level readings are required. This mic allows users to calibrate sound level meters and ensure that they are providing accurate measurements for noise testing and inspection purposes. The calibration mic helps businesses comply with regulations and standards related to noise levels in the workplace or surrounding environments.