acoustic calibrator / for sound level meters / portable
CAL73 B&K Precision



  • Measured physical value:


  • Applications:

    for sound level meters

  • Options:


  • Noise level:

    Max.: 114 dB

    Min.: 94 dB


The CAL73 high accuracy and user-friendly sound level calibrator can be used with a wide range of sound measuring equipment and is equipped with a 1/2 inch adapter allowing it to perform calibrations on both 1 inch diameter microphones and 1/2 inch microphones. It is designed according to IEC 60942 (2003) Class 2, ANSI SI.40-1984 and provides calibration for 94 dB and 114 dB at 1 KHz.