Invictus Noise Monitors for Environmental Noise Measurements

The Invictus is a range of next generation environmental noise measurement instruments from Cirrus Research.

The Invictus is available as either a portable noise monitor that is ideal for short and medium-term measurements, or an installed system designed for long-term measurements. The advanced features of the Invictus are available on all versions, allowing any noise monitoring application to be covered.

Using the very latest technology, the Invictus is simple to set up and deploy whilst providing a full and comprehensive range of noise measurement parameters.

Invictus Noise Monitors

Key Features of the Invictus Noise Monitor

  • Colour touch screen interface simplifies set up and deployment
  • Simultaneous measurement of all parameters
  • Noise event detection with in-measurement audio recording, SMS, Email & Twitter alerts
  • Live audio playback via the Noise-Hub2 software
  • IEC 61672-1:2013 Class 1 performance
  • 120dB measurement range in a single span
  • Full weather protection with dual-skinned windshield
  • 32GB data storage as standard
  • External calibration with microphone performance verification
  • Optional 1:3 Octave Bands from 6.3Hz to 20kHz with Tonal Noise Detection
  • GPS location information stored with each measurement
  • 3G, GPRS, Wi-Fi & Ethernet (LAN) communications
  • Option of weather measurements integrated with noise data
  • Noise-Hub2 software for PC, Server & Web
  • Optional output stream for integration with video recording systems
  • External power input for long term operation

Applications for the Invictus Noise Monitor

  • Construction & Demolition Projects
  • Wind Farm Noise Measurements
  • Noise Impact Assessments
  • Planning Applications
  • Traffic & Transport Noise
  • Mining & Quarrying
  • Airport Noise Management & Monitoring
  • General Aircraft Noise
  • Power Generation
  • Motor Racing Circuits & Motorsport Noise Monitoring
  • Product Development & Testing
  • Firing Ranges
  • Noise Compliance Monitoring

The Invictus is a purpose designed environmental noise measurement instrument designed for use in a wide ra nge of applications from short term noise measurements to long term noise monitoring projects.

An Invictus can be used on its own as a portable environmental noise monitor or can be combined with other instruments and sensors to form part of a larger, more comprehensive noise measurement and management system. For medium and long term noise monitoring applications, the Invictus can be combined with a secure enclosure for wall or mast mounting.

Ease of use is key to the Invictus and the large, clear colour touch screen allows the instrument to be deployed quickly whilst allowing the user to see the exact status of the system.

Using the very latest technology, an Invictus is simple to set up and deploy whilst providing a wide range of noise measurement parameters. Supplied with the Noise-Hub2 software package, the Invictus is the ideal noise measurement and monitoring instrument for any application where ease of use and high performance are essential.


Read how our customers use the Invictus to solve their environmental noise measurement issues.

Cirrus Environmental has enjoyed a long alliance with John F Hunt Demolition going back over many years, so much so, the company’s Health, Safety & Environmental Department has accumulated almost an historic arsenal of Cirrus equipment that charts the journey of noise monitoring over the years.

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Locking up noise in Lancaster Castle
An international acoustic consultancy was engaged by contractor Balfour Beatty on behalf of the end client Network Rail in this landmark project that is revolutionising transport across London.

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Locking up noise in Lancaster Castle
It’s pretty unusual for any noise consultant to be asked to monitor noise levels at a dance music festival held within a medieval castle.

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Locking up noise in Lancaster Castle

Invictus Noise Monitors for Environmental Noise Measurement Applications

Everything you need for monitoring environmental noise issues

Invictus instruments have been specifically designed with a range of innovative features and functions as standard that can help to make carrying out noise measurements and monitoring quicker and simpler to achieve.


Simultaneous measurement of all parameters

All of the measurement functions in the Invictus are measured at the same time so there’s no risk of selecting the wrong parameter.

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Fully Connected for remote communications

The Invictus supports a range of standard communication methods including a 3G/GPRS modem, ethernet (LAN) or Wi-Fi. Invictus can also communicate over RS232 where other communication options are required.

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Fully Weather Protected for use in harsh environments

Fully weather protected, the main instrument is contained in a secure, lockable case with rugged connectors to attach the microphone and other external systems.


Informative with custom alerts via SMS, email & twitter

Invictus can send alerts via SMS, Email or Twitter to any number of contacts when a noise event occurs.For construction projects that have a daily permitted noise limit Invictus can be configured to alert the relevant parties when a pre-set percentage of that limit is reached.

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Noise measurement analysis & reporting with Noise-Hub2 software

Noise-Hub2 software package have been designed to work in partnership to provide a complete noise monitoring and reporting system.This next-generation platform can be run on a single PC, on a server or accessed through a web interface, allowing measurement data to be downloaded and reviewed, and reports created quickly and simply.

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Flexible measurement and alert periods

The calendar function allows you to plan your noise monitoring operations 7 days a week. The in-built calendar allows different measurement periods, triggering templates and alerts to be set up for different times of the day/days of the week to comply with complex noise limit conditions.

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Integration of additional options

Invictus includes additional inputs and outputs for integration of weather data and video recording systems.


Get only the features you need

Invictus range of noise monitors have a range of variants, giving you flexibility dependant on your requirements, so you only pay for the functions you need. Invictus offers the standard, frequency analysis, scheduled measurements and full advanced monitoring options.

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If you have any questions or if you would like any more information, please contact us and we will be pleased to help.

Please call us on
+44 1723 891655.

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