Sound Level Calibrator
The Global Specialties GNV-102 Sound Level Calibrator (class 2) is a portable sound level calibrator to maintain the accuracy of your Sound Level Meter devices. With both a 1/2 inch and 1 inch port, calibration can be done on our GNV-100 and GNV-101 sound level meters and many more. A 40-hour battery life will ensure that your sound level meters are always properly calibrated.