The new 42AG Multifunction Sound Calibrator

Developed as an improved replacement for the successful 42AB Sound Calibrator, the new GRAS 42AG Multifunction Sound Calibrator is designed for fast verification of microphones and sound level meters in the field.

GRAS 42AG Web 500x100

Developed as an improved replacement for the successful 42AB Sound Calibrator, the new GRAS 42AG Multifunction Sound Calibrator is designed for fast verification of microphones and sound level meters in the field.

42AG comes with new multifunctional features
Whereas 42AB produces a constant nominal sound pressure level of 114 dB at 1 kHz the new 42AG can calibrate at two frequencies, 250 Hz or 1 kHz and at two levels, 94 dB or 114 dB. This makes it well suited for calibration of sound level meters, which normally are calibrated at 1 kHz, and for calibration of microphones, which normally are calibrated at 250 Hz.

In addition, 42AG can calibrate at two different sound pressure levels. A normal level of 114 dB, which is a sound pressure level suitable for microphones with medium sensitivity. The low level of 94 dB makes it possible to calibrate high-sensitivity microphones, like low-noise microphones, without overload.

Read the press release here

Read the product information here