Environmental Monitoring Equipment & Supplies • Sales, Rental & Service by Enviro-Equipment — Charlotte, North Carolina USA

Casella CEL35X DBadge Noise Dosimeter
  • Measures and logs all workplace noise parameters.
  • Measurements according to ISO9612: 2009, OSHA 29 CFR 1910.95
  • 28 hour battery life, fully charges in 90 minutes.
  • Cable free, compact, rugged rubber coating, weights only 71g.
  • Intrinsically safe models available.
  • Casella Insight Data Management Software for data analysis, reporting and archiving.

This item is no longer available.

The dBadge Series comprises of the dBadge and dBadge ‘Plus’. The dBadge Series is ideal for personal noise exposure measurements around the workplace. By using the latest digital technology, the dBadge Series achieves new standards of performance levels in noise dosimetry.

Measured Parameters
ISO LAeq, LCpeak , LAEX,8h, Projected LAEX,8h, Pa2 Hours Projected %dose (Q=3)
OSHA LAavg (Q=5), LZpeak , LASmax , %dose (Q=5), TWA, Projected TWA, %dose, Projected %dose (Q=5)
General LAFmax, LAFmin, LASmin (via insight), LAIeq, LAImax, LAImin, LApeak
Time History LAeq, LZpeak, LCpeak, LAavg (Q=5) Stored as 1 minute values (except CEL-350L) Note: dose values (L AEX,8h , & TWA) are only shown when ‘Pro’ mode is enabled on CEL-350 and CEL-352 models
dBadge 'Plus' Simultaneous measurement of LCeq, and LAeq, together with calculated LCeq-LAeq used for the selection of hearing protection

The dBadge model has additional functionality to measure the time history of noise levels on top of these cumulative levels, which can later be graphed on the PC Software. The dBadge ‘Plus’ model is also available which measures simultaneous ‘C’ and ‘A’ weighted Leq measurements as additional functionality. These can then be used to calculate the effectiveness of hearing protection by either the SNR or HML method further increasing the applications for this innovative product. For any model no set-up is required so there is no risk of measuring the wrong parameters.

The dBadge Series is quick and easy to operate. After switching the dBadge on, place the calibrator over the microphone and the dBadge Series will auto-calibrate, and store the calibration data and time, ensuring accurate and validated results.

Kits are available with various quantities of dBadges and include all items necessary for workplace noise dosimetry measurements. Each kit is complete with the appropriate number of dBadge units, as well as a CEL-120/2 Acoustic Calibrator, infra-red download cable, 3-way charger, and power supply. The dBadges and the CEL-120/2 Acoustic Calibrator are supplied with calibration certificates.

Model CEL-350 CEL-352
Cumulative Dose Data
Time History Profiling
HML Parameters for the Selection of Hearing Protection  

Linear operating range

65.0 to 140.3dB RMS

Peak measurement range

95.0 to 143.3dB Peak

Frequency weightings RMS

A (and ‘C’ on CEL-352)

Frequency weightings Peak

C, A, Z (Linear)

Time weightings

Slow, Fast & Impulse

Amplitude weightings

Q=3 & Q=5

Selectable thresholds

2 (70 to 90dB), selectable in 1dB steps

Selectable criterion

1 (70 to 90dB), selectable in 1dB steps

Memory capacity

180 Hours of measurements

Default modes


Calibration information

Calibration dates, times and levels

Run duration timer

Selectable up to 12 hours in 30min intervals


Lock via keys

Power supply

Internal NiMH cells

Battery life

28 Hours run capacity

Size mm (in)

80x47x52 (3.1x1.8x2.0) inc windshield

Weight g (oz)

71g (2.5)

Data storage

Non-volatile, 10 years of storage


Graphic LCD 96 x 26 pixels

Output (PC)

Infra-red to USB (PC) cable to Insight Software

Applied Standards

IEC 61252:2002 Personal Sound Exposure Meters; ANSI S1.25:1991 Personal Noise Dosimeters

Operating temperature

0 to +40°C

Operating humidity

30 to 95% RH (non-condensing)