Sound Level Meters, Noise Dosimeters & Noise Measurement Instruments

Cirrus specialises in the design and manufacture of sound level meter, noise dosemeters and noise measurement instruments. All of our instruments are manuafactured by Cirrus in our UK factory so you can be sure that you are getting your equipment direct from the manufacturer.

Below are our main noise measurement product ranges. If you would like to choose an instrument by application, click here. If you would like advice or if you have any questions, please contact us and we will be pleased to help.
Cirrus Product Training Courses – New dates for 2013
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Visit the Noise Doctor at Safety & Health Expo 2013
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Win an iPad Mini or Noise Cancelling Headphone at Safety & Health Expo 2013
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BANG! And the Noise is gone! See the Noise Doctor in action at the ARCO Academy @ S&H Expo
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Upgrade your DAT Noise Nuisance Recorder
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Find out more about the Trojan Noise Nuisance Recorder
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Cirrus Research tunes into music and entertainment
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Find the best sound level meter for you with our new optimus selector
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The Noise Doctor is in! Ask your noise measurement questions
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Calculate dBA from Octave Band Sound Levels
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Control of Noise at Work Regulations – A summary of what you need to measure
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A Sound Level Meter with Calibrator
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Our Noise Measurement Instruments
Basic Sound Level Meters
A range of simple sound level meters with Class 1 or Class 2 performance. Ideal for
  • Simple Noise Level Testing
  • Noise Ordinance Enforcement
  • Community Noise Assessment
  • Fire & Emergency Alarm Testing
  • Machinery Maintenance
  • Fireworks & Pyrotechnic Testing
Advanced Sound Level Meters
A range of advanced sound level meters with Class 1 or Class 2 performance and options including Audio Recording, Real-time 1:1 & 1:3 Octave Band Filters, Data Logging, Ln values and Noise Exposure Calcuators. Ideal for
  • Occupational & Industrial Hygiene Noise Evaluations
  • Noise at Work Surveys & Noise Exposure Calculations
  • Hearing Protector Selection using HML or Octave Band Methods
  • Environmental noise impact assessments
  • Occupational & Industrial Hygiene Noise Evaluations
  • Tonal analysis using 1:3 Octave Band Filters
  • Detailed analysis using audio recording
doseBadge Noise Dosemeter
A unique personal noise dosemeter with data logging and dual channel measurement capabililty
  • Personal Noise Exposure Measurements
  • Industrial Hygiene Noise Monitoring
  • Industrial Noise Surveys


Environmental Noise Monitors
Cirrus Research plc has a range of Permanent and Portable Noise Monitors, Sound Level Meters and Noise Measurements systems that can be used for the measurement and monitoring of environmental noise. Applications include:
  • Airport Noise Monitoring Systems
  • General Aircraft Noise
  • Power Stations
  • Construction Sites
  • Traffic Noise
  • Motor Racing Circuits
  • Product Developement & Testing
  • Mining & Quarrying
  • Firing Ranges
SoundSign Noise Warning Sign
SoundSign™ is a highly visible noise activated warning sign that has been designed for use in environments where there is a need to clearly warn or indicate when a preset noise level is reached.
  • Lights up when a preset noise level is exceeded
  • Quick & simple to install
  • Trigger level from 40dB(A) to 114dB(A) for use in any environment
  • High intensity white LED technology for high visual impact and a long operating life
  • Use text and graphics to communicate specific noise level warnings
  • 4 standard designs to cover all applications
Safety Officer's Noise Kits
A range of complete noise measurement kits combining a sound level meter with the doseBadge noise dosimeter.
  • Noise Ordinance Enforcement
  • Community Noise Assessment
  • Fire & Emergency Alarm Testing
  • Machinery Maintenance
  • Fireworks & Pyrotechnic Testing
Microphone Capsules & Acoustic Calibrators
A range of Acoustic Calibrator, Precision Microphone Capsules and Microphone Preamplifiers. Ideal for
  • Sound Level Meters
  • Noise Measurement Systems
  • OEM Applications
Noise Nuisance Recorders
A high performance digital noise nuisance recorder
  • Simple set up with intuitive screen instructions and automatic startup
  • Compact size for discreet installation
  • Wireless remote control for simple operation by the user
  • Highest quality uncompressed audio for stronger evidence collection
  • Includes easy to use reviewing software with free lifetime updates and licence free installation
  • Simultaneous measurement of all parameters so no data is missed
  • Automatic re-start after power failure prevents data loss
  • Memory expandable up to 64GB for long term measurements
  • Class 1 real-time analyser suitable for other environmental noise measurements
  • Automatic audio calibration allows recordings to be played back at correct volume
  • Designed, manufactured & calibrated in UK