DAWE Sound Level Meter D-1422C with CEL Acoustic Calibrator CEL-110-2

DAWE Digital Impulse Sound Level Meter used to measure noise levels for safety and health reasons. 

This would be used with a sound level meter calibrator and is compatable with any Class 2 calibrator.

This set includes a Casella CEL 110 Acoustic Calibrator, Class 2. 

This device is used to perform a field calibration of sound level meters to ensure their accuracy before and after measurements are taken.