Most professional grade sound level meters will measure up to either 130dB or 140dB. The main restriction is with the performance of the standard microphone capsule and also its ability to survive the extreme pressures involved with higher sound levels.
The MIC1 High Range Microphone is available for the CEL630 series sound level meters:
This ability to measure very high sound levels makes it ideal for many applications, including:
To use the high range microphone you simply remove the standard 1/2 inch capsule from the meter and then fit the 1/2" to 1/4" adapter along with the MIC1 1/4" capsule, as shown above. The meter can then be switched into its high range mode, covering 25 to 165 dB.
The CEL120/1 Class 1 Calibrator (as supplied with the CEL630 kits) is ideal for calibration checks with the MIC1 high range microphone fitted. However, you will need the CEL4726-01 Adapter to make it fit in the calibrator's 1/2" cavity.
The high level microphone works with any of the CEL63x series sound level meters:
The additional parts that you need are:
