Quantifier 91 & 92 sound level meters


A no-nonsense, practical solution for industrial noise measurements. All instruments in the Quantifier range are data logging making it easy to transform your noise measurements into informative reports. Models 91 (Class 1) & 92 (Class 2) are simple to use meters for a wide range of applications ideal for Industrial, Occupational and Environmental Noise Measurements.  Switch on, calibrate and begin measuring noise levels.

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The Model 91 Sound Meter Data logging (Class 1) and Model 92 Sound Meter Data logging (Class 2) are the ideal choice for noise measurements for compliance with the Noise at Work Regulations and EU Directive 2003/10/EC.

Each Sound Meter has been designed to be easy to use whilst providing the user with the fundamental parameters required to comply with current legislation such as Leq, LEPd and LCPeak.

Both instruments are data-logging with the outstanding Pulsar Analyser reporting software package provided as standard, making the transformation of measurements info informative reports a simple task.

Simply switch on the instrument, calibrate and start measuring noise

  • Easy to navigate keypad
  • Broadband measurements with Time History
  • Data-logging with outstanding Analyser software package provided as standard
  • Option to print data directly from the instrument
  • Automatic back-light
  • Complies with IEC 61672, IEC 60651 & IEC 60804
  • Calibration certificate included as standard


  • Ideal for Industrial and Environmental Noise Measurements


The ‘Analyser’ Sound Level Meter Software package is supplied as standard with the Models 91 & 92 instruments. The instruments can store data in their internal memory and this information can be downloaded and reports created using the exceptional Pulsar ‘Analyser’ download and analysis reporting software.

The Sound Level Meter Software also has a special database of hearing protectors that allows the user, at the click of a button, to have all calculations done for them automatically. A selection of hearing protection is listed and a report can be compiled.

The Model 91 & 92 noise testing equipment comes supplied with:

  • 24 month warranty
  • ‘Analyser’ download
  • Analysis & reporting software
  • USB download cable
  • User manual
  • Certificate of calibration
  • Battery (2 X AA batteries)

The noise testing instrument can be supplied as part of a complete noise measurement kit, containing all that is required to carry out a noise survey.

Each Model 91K (Class 1) or Model 92K (Class 2) noise measurement kit contains:

  • Model 91 or 92 Sound Level Meter or noise meter
  • Model 105 (Class 1) or Model 106 (Class 2) Acoustic Calibrator
  • Battery compartment of Pulsar Quantifier sound level meter
  • WS90 Windshield
  • K2 Hard Attaché Case
  • Wrist Strap
  • Batteries (2 X AA batteries)
  • Calibration Certificate for the sound level meter and its acoustic calibrator
  • User manual
  • ‘Analyser’ download, analysis and reporting software
  • USB download cable
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LLW Repository Ltd
LLW Repository Ltd manages and operates the UK's primary facility for the permanent disposal of solid low level radioactive waste in Cumbria. The company contacted Pulsar in October about noise measurement products. They selected the well tested and established Model 91 from the Quantifier range of sound level meters with an outdoor measurement kit. On receipt of their new purchase, they wrote: ‘The instrument was received this afternoon. I have only been able to have a quick play with it but it certainly seems to be the right instrument for us and the accessories provided look very professional and suitable. We are very pleased with our purchase and would like to thank you and your team.

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