G.R.A.S. Sound & Vibration Releases Improved and Easy-to-Use Sound Calibrator that Calibrates at Two Frequencies and Levels
G.R.A.S. Sound & Vibration announced the availability of the new, cost effective, and easy-to-use 42AG Multifunction Sound Calibrator. This new portable device, which can calibrate at two frequencies, was designed for fast verification of microphones and sound level meters in the field and was developed as an improved replacement for G.R.A.S.’s successful 42AB Sound Calibrator, with additional time-saving features.