How often does the CEL-350 need to be recalibrated?
As with all noise measurement equipment, the CEL-350 dBadge Micro Noise Dosimeter and CEL-110/2 Acoustic calibrator should be recalibrated at least every 2 years. The CEL-350 Micro Noise Dosimeter and CEL-110/2 Calibrator should be recalibrated together as they are used as a set. Instruments should be returned to the manufacturer for a traceable recertification each year or as the local regulations require.
