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Integrating Sound Level Meter for Noise at Work

integrating sound level meter hire

With measurement of LAeq and LCPeak, the CEL620B Sound Level Meter is ideal for noise at work assessments.


  • Noise at Work Assessment
  • Hearing protector evaluation
  • Machinery noise checks

Main Features

  • Integrating Class 2 (as required by noise at work regulations)
  • Measures LAeq and LCPeak along with many more parameters
  • Real-Time Octave Band Filters

Hire Kit Includes

  • Sound Level Meter and Calibrator
  • Software and download cable
  • Calibration Certificates
  • Carrying Case
Hire Period:


The CEL620B2 is a Class 2 Integrating Sound Level Meter, making it ideal for most occupational and general purpose noise assessments. It can also be used for more detailed noise surveys that require frequency analysis using Octave Band Filters.

This is a data logging meter, so it can store measurements for download to a computer. Software is included in the hire kit, or you can even transfer the measurements into Excel or similar spreadsheet without installing any software at all.


It is essential that a sound level meter meets the correct standards for any measurements that could be used for the protection of hearing or any other legal reasons.

The CEL620B meets the correct standards for noise at work measurements (see Applications section). If you are unsure of the standards required for other regulations then please call or email for advice.

Noise at Work

This sound level meter is the correct specification for all occupational and noise at work assessments being carried out in line with the EU regulations and the UK HSE guidelines. These regulations require the use of an integrating sound level meter that meets the IEC 61672 standard to Class 2. The meter should be capable of measuring LAeq and LCpeak.

The Octave Band Filters are not essential but can be used to carry out more detailed checks to ensure that the hearing protectors available are adequate. For this reason we always include the octave band filters feature with this meter.

General Purpose Noise Measurement

The CEL620B2 is suitable for any general purpose noise measurement that demands the use of a Class 2 Sound Level Meter or Class 2 Integrating Sound Level Meter.

If your measurement guidelines don't mention standards then this meter should also be adequate, but please check with us first if you have any doubts.


The noise at work regulations state that the meter's calibration should be checked before and after making measurements.

Put the Calibrator on the mic. and select the Calibrate option.

Keep a record of all calibrations (done automatically if you are downloading to a computer) to meet the noise regulations.


Press the Run/Stop key to start a measurement. Once the measurement is complete (e.g. the LAeq average level has settled) press the Stop key.

All parameters are stored in the meter for viewing or download - no need to choose which measurements you need, they are all there.


Back in the office, the measurements can be viewed on the meter's display or they can be downloaded to a computer.

The hire kit includes the Insight software for downloading and reporting. If you don't want to install software then you can just plug the meter into your computer's USB port and it will act like a memory stick. Measurements can be copied straight from the meter and loaded into Excel, Word or similar software.

StandardsIEC61672 Class 2, ANSI S1.43 Type 2
 IEC60651 & IEC60804 Type 2
Meas. Ranges20 to 140 dB (single range), 143 dB Peak
Noise Floor< 33 dB(A)
Time WeightingsFast, Slow, Impulse
Freq. WeightingsA, C and Z (simultaneous)
Sound LevelLXY, LXYMax, LXYMin
IntegratedLXeq, Lavg, LAE
Where:X is frequency weighting A, C or Z
 Y is time weighting Fast, Slow or Impulse
Dimensions72 x 229 x 31mm, 295g
Tripod Mount1/4" socket
Battery Power3 x AA Alkaline for > 20 hours
External Power9 to 14V DC at 250mA via 2.1mm connector
EnvironmentRH 5 to 90% non condensing
 Temperature: 0 to 40°C
Storage100 measurements
Output to PCUSB