Sound Calibrator

Sound Calibrator AC 03   

AC 03 sound calibrator is suitable for sound pressure calibration of sound
meters and other sound measurement equipment. The sound calibrator has a built-in feedback microphone to ensure a highly stable sound pressure output. 94dbSPLor 114 dB SPL dual sound pressure levels is optional, which can make a calibration even in a noisy environment. 1-inch, 1/2-inch, and 1/4-inch microphones can be calibrated with 1kHz calibration frequency. Conforms to IEC 60942:2003 Class 1, and GB/T 15173:2010 Class 1
The calibration is independent of the weighting network used (the attenuation, B, C, and D weighting networks  is 0 at 1000Hz)

General Features
 Conforms to IEC 60942:2003 Class 1, and GB/T 15173:2010 Class 1
 94 dB SPL or 114 dB SPL dual sound pressure levels are optional.

 1 inch, 1/2 inch and 1/4 inch microphones can be calibrated