Noise Measurement Instruments

Innovative Acoustic Instruments

Innovative Acoustic Instruments

Cirrus Research is a world-leader in the design, manufacture and supply of noise measurement equipment. Using our 45 years’ experience, we continuously develop new technologies to provide complete, simple solutions for occupational and environmental noise monitoring.

Noise Academy Training

Noise Academy Training

Whether you’re just getting started in the world of noise measurement or you need a refresher, The Noise Academy offers the training you need. Book onto our product workshops, download our free guides or watch our training videos. Take control of your learning.

In-House Service & Calibration

In-House Service & Calibration

Protect your investment with Service and Calibration from Cirrus Research. Annual calibration and servicing is essential to verify the accuracy and performance of your instruments during their lifespan. This is all supported by our 15-Year Warranty for total peace of mind.

Dedicated Customer Support

Customer Support

Do you have a question about your noise measurement equipment? Get the answers you need directly from the manufacturer using our online Support Centre. Troubleshoot any issues or ask us a question. Our Support Team are ready and waiting to help you.

Our Mission & our Passion

Our Mission

Cirrus Research is dedicated to helping our customers to improve the quality of life of those affected by excessive environmental noise and to protect themselves and their employees from the effects of occupational noise exposure.

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Our Passion

We strive to help people and businesses worldwide meet their noise measurement needs and we are dedicated to providing high quality noise measurement solutions, knowledge and support to our customers whilst growing a profitable and stable business, innovating and striving to be the best in all areas in which we operate.

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What Our Customers Say

The Optimus Red Sound Level Meter

"There is nothing out there that can rival the Optimus Red noise level meter for its intuitive technology and accuracy"

Nick Phillips /Manufacturing Manager, Ilmor Engineering /

The Trojan2 Noise Nuisance Recorder

"Having a Trojan is like having another officer on the team. It does everything we want at the end of the day"

Nick Tindall / Neighbourhood Enforcement, Hull City Council / Read more...

The doseBadge Noise Dosimeter

"The Cirrus doseBadge is simple, exact and what every Health & Safety manager should use to help protect employees at work"

David Wilford / Health & Safety Consultant /


  •  All products designed, manufactured and supported by Cirrus
  •  Dedicated to noise measurement and providing simple solutions
  •  Instruments covered by our 15-Year ‘No Quibble’ Warranty for extra peace of mind
  •  NoiseTools software included to download, analysis and share your measurements
  •  Dedicated Customer Support team to help you every step of the way

Connect with Cirrus

Who We Are

Cirrus Research plc is a world leading manufacturer and supplier of sound level meters, noise meters, noise dosimeters, environmental noise monitoring systems and acoustic transducers.

Our products are used across a wide and diverse range of applications including Occupational Noise, Industrial Hygiene, Environmental Noise Measurement, Vehicle Noise Testing and Airport Noise Monitoring.

With 40 years experience of innovation and customer support, backed by our ISO 9001:2008 and ISO 14001:2004 Quality Management Systems, Cirrus is dedicated to noise measurement.