Casella CEL 350 Personal Noise Dosimeter Kit Rental

  • Clips onto workers to gather personal noise dosage data for OSHA or ISO compliance.
  • Measurement Range: 65-140 dB.
  • 3 and 5 dB exchange rates, time average, C and Z peak levels, calculates % noise dose plus Lavg and TWA.
  • Software included for data download and generating reports and graphs.
  • Field calibrator and annual factory calibration certificate included.


We no longer offer this product.

If available, alternative products will be listed below.

Instantaneous SPL LAF LAS
Time Averaged Parameter LAeq LAavg
Peak Value LCpeak LZpeak
Dose Value Pa2Hours,
Projected %
% Dose,
Projected %

The CEL-350 dBadge is a unique solution to problems associated with the measurement of personal noise exposure. Using the latest digital technology ensures reliable and repeatable measurements. The CEL-350 dBadge has no cable like a traditional dosimeter, so is far easier to fit to an employee and is less likely to interfere with the individuals work.

The CEL-350 dBadge is very simple operate with just 2 keys, and can be locked to prevent tampering. After a measurement has been completed the noise badge can be downloaded via it's infrared port to the Casella Insight PC software. This will allow comprehensive analysis of an employee's exposure.

For information about the OSHA hearing conservation action levels, visit the OSHA Dosimeter Settings Webpage.

The CEL-350 is designed to satisfy all current workplace noise protocal methods for the collection of personal noise data.  Careful attention to the requirements of both US and European noise dosimetry methodologies provides for the simultaneous storage of noise levels in such a way that the dose values can be obtained with both the widely used exchange rates (or Q factor) using the 3 and 5 dB doubling rates.


The CEL 350's have pre-programmed settings for ISO and OSHA. The Casella Insight software allows you to change the governing body even after the data has been collected. You can also enter your own custom settings.


96 x 26 pixel graphic LCD display showing main instrument results and status. The following parameters are shown on the screen with data present:


-2 key tactile water and dustproof keys.
-left key On/Off button
-right key Enter/OK button to confirm selections


- Infrared download port in top of CEL-350
- USB Infrared download cable
- 8 hour run downloads in about 6 seconds
- 180 hour full memory takes about 2 minutes to download

Intrinsically Safe Models Available

Intrinsically Safe Casella CEL 350 Models are available to use in hazardous locations where flammable materials may be present.

Acoustic accuracy ANSI S1.25, IEC61252 2002 Personal sound exposure meters
Dynamic range (dB) 65 to 140
Frequency weightings A for rms values plus Z and C for peak measurements
Time weightings Slow for Q=5 data plus non for Q=3 data as required for standards
Exchange rate (Q dB) 5 and 3 simultaneously
Threshold level (dB) Any levels from 70 to 90 in 1 dB steps
Criterion level (dB) Any level between 70 and 90 in 1 dB steps
Microphone capsule Removable ½" type 2 device can be calibrated with any standard acoustic calibrator using ½" diameter cavity
Calibration method Automatic recognition and calibration to user set dB level
Display screen 96 x 26 pixel graphics LCD with 2 line text messages
Alarm warning indicators Red and blue LED's showing level noise exceedances during run
Indicators 2 stage hi intensity LED's for memory, battery or noise warnings
User controls 2 push buttons for On/Off and OK/Accept
Weight (oz, g) < 2.4 oz (68 g)
Size (in, mm) < 2.8 x 1.7 x 2.0 in (72 x 42 x 52 mm)
Case molding High impact ABS plastic molding
Battery pack Two half AAA size NiMH rechargeable cells
Battery life (hr) 28 hours continuous, unit gives expected remaining battery life in hours when switched on by "fuel gauge" display icon
Charging unit dBadge master charger base with drop in charging via connections on back of dBadge casing
Memory storage (results) At least 180 hours at 4 profiles every minute with unit showing remaining memory recording time in hours when switched on
Stored profile values Lavg(Q=5), LZpk, Leq(Q=3), LCpk
Storage interval Fixed 1 minute for all 4 results simultaneously
Real time clock Date and time stamp on all calibration data and profile results
Fixing method to worker Various fixing clips provided for clothing and hard hat mounting
Microphone protection Lockable foam windscreen to protect microphone
Security features dBadge can be locked prior to being left on worker to prevent tampering - showing only duration and run in progress on display
Localization of menus Up to 5 standard languages can be selected for screen prompts, English, Spanish, French, German, Italian
Identification of multiple units 2 line text string can be uploaded from dB35 pc program
  • Casella CEL 350 Noise Dosimeters (3 or 5 Pack)
  • 3 Slot Dock Station Charger (1 or 2)
  • Acoustic Calibrator
  • Factory Calibration Certificates
  • Battery Charger
  • Casella Insight Software
  • Infrared Download Cable
  • Hard Carrying Case
  • User Manual
  • Spare Battery (calibrator)