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Acoustic calibrator - 94 - 114 dB | HD 2020
The HD 2020 Sound Level Calibrator by Delta OHM is mainly designed to provide an excellent quality performance and functionality. It is a portable, battery-powered sound source which is very much ideal for several sound level meters. It enables the calibration of microphones with a mechanical dimension in accordance to the IEC 61094-1 requirements. It is ideally provided with a laboratory standard mtiophoes and miaophones. The calibration pressure levels include an ol 94dB and 1l4dB which can be selected through the use of a keypad.