24X Series


From time to time, Casella makes improvements to firmware as recommendations are made by our users. Please find below the latest version of firmware, release notes and an upgrade procedure:


24x Series Firmware Upgrade Procedure
Please read the firmware upgrade procedure linked above to determine the correct Firmware version required from below.


Casella CEL-24x Series Hardware Firmware (NEW)


Casella CEL-24x Series Hardware Firmware (OLD)

Casella Mass DFU  - This is only required for Hardware Firmware (OLD) only.

Please see links below for Software and Utilities that support this product:


Download Casella Drive (for CEL-246 models)
Download Casella Model Upgrade Program (Version 5)
Download dB24 Software (for real-time connection to CEL-240 and CEL-246 units)
Casella Model Upgrade Utility

Please find below Certifications and Accreditations associated with this product:


24x Series EU Conformity Certificate
CEL-120 Acoustic Calibrator CE Certificate

At Casella we try to do our best to help users get the most from our products. Please find below a selection of videos providing support and guidance for the 24x Sound Level Meter:


24x Series Sound Level Meter Promotional Video