Invictus Environmental Noise Monitor

Environmental Noise Monitors

The Invictus Environmental Noise Monitor are a range of next generation environmental noise measurement instruments.

  • 120dB measurement range in a single span
  • Full weather protection with dual-skinned windshield
  • 32GB data storage as standard
  • Optional 1:3 Octave Bands from 6.3Hz to 20kHz with Tonal Noise Detection
  • IEC61672-1:2013 Class 1 performance
- +


The Invictus Environmental Noise Monitor

The comprehensive solution for long-term environmental noise measurements

Invictus Environmental Noise Monitors is a purpose built environmental noise monitoring instrument designed for use in a wide range 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.

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.


NoiseHub2 Noise Monitoring System Software

Compatible with our Invictus Noise Monitor, NoiseHub2 Software is an advanced environmental noise monitoring software you can tailor to meet your monitoring applications.

Whether you need a single noise monitoring terminal, a portable solution or a complete, integrated modular management system with an unlimited number of noise monitoring terminals and different users, Noise-Hub2 allows us to deliver, install and commission a total easy to-use package.

Download NoiseHub2 Now
Image link
Remote instrument access
Live noise data over the web
Receive live notifications
Noise event alerts by email, SMS and Twitter
Automatic reporting
Automatic reporting by email direct to your inbox
Profile and organisations
Multi-user permission levels

Everything you need for monitoring environmental noise issues

The Invictus Environmental Noise Monitor has 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.

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

The Invictus supports a range of standard communication methods including a 4G/3G/GPRS modem, ethernet (LAN) or Wi-Fi. Invictus can also communicate over RS232 where other communication options are required.

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

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.

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.

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.

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

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.

Applicable Standards

IEC 61672-1:2013 Class 1
IEC 61672-1:2002 Class 1
1:3 Octave Band Filters to IEC 61260


External weatherproof MV:180 with 10m cable. Weatherproof with windshield fitted Electrostatic actuator


Dual layer 200mm windshield with hydrophobic coating

Total Measurement Range

20dB to 140dB RMS Single Range

Noise Floor

< 18dB(A) Frequency Weightings

RMS: A, C, & Z Measured Simultaneously Peak: A, C, & Z Measured Simultaneously

Time Weightings

Fast, Slow & Impulse Measured Simultaneously


High resolution 800×480 pixel 7” resistive touch screen


Illuminated keypad


32GB Compact Flash

Data Storage

Up to 512 Days (at 1 second time history)

Time History Data storage

10ms, 62.5ms, 125ms, 250ms, 1/2 sec, 1 sec, 2 sec (User selectable)

Measurement Control

Calendar: Up to 6 time slots per day, fully customisable for each day of the week Repeat Timers: User selectable duration between 1 minute to 23 hours


Internal: 4 x Internal 9.6V 10000mH NiMh battery packs. External: 12v-15v DC


COMMS A Serial RS232
COMMS B Serial RS232
RF – FME/SMA Connector
GPS – FME/SMA Connector
Compact Flash Battery charge 2.5mm DC Socket

Language Options

English, French, Spanish, German, Chinese

Software Support


Communications Options

Remote: Modem (3G/GPRS) Wifi Ethernet Local: USB

Weather Measurement (Option)

Wind speed, Wind Direction, Humidity. Temperature, Pressure, Tip bucket Precipitation

Video OSD (Option)

Option to enable analogue video (CCTV etc) to be stamped with live LAF value and instrument description.


LXYMax & Time History of LXYMax LXYMin LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak, LAIeq Time, date & duration of measurement GPS location data

Time History

LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak, LAIeq

1:3 Octave Bands

Overall Leq & Leq Time History for each band 14 Ln values per 1:3 octave band Tonal Noise Detection in 1:3 Octave Bands

Ln Values

28 independent statistical values Up to 14 1:3 Octave Bands statistical values

Acoustic Fingerprint Triggering

Up to 12 triggers, based on Level, Rate of Change or Tone with minimum duration Triggering of audio recording or notifications

Audio Recording

Compressed 8kHz, 8bits Standard 16kHz, 16bits (limited range) Studio 96kHz, 32bits (lossless)


SMS, Email or Twitter (Depending on communication modules selected)

Live Audio Listen

Live audio listening of compressed audio

Predicted Leq triggers

Shows % of noise dose and time left before exceedance. Sends notification before exceedance is reached

Event measurements

Triggered recording of small measurements (up to 5 min) with LAeq time history, 1:3 Octave bands spectrum and overall values

Ln Values

2 sets of 14 independent statistical Ln values: 7 preset to L1.0, L5.0, L10.0, L50.0, L90.0, L95.0 & L99.0 7 user defined Ln values 1 set of 14 independent 1:3 Octave Bands statistical Ln values 7 preset to L1.0, L5.0, L10.0, L50.0, L90.0, L95.0 & L99.0 7 user defined Ln values


Preamplifier disconnected Preamplifier tilt Windshield removed Low battery power External power disconnected Case open Compact Flash card failure Calibration failure


Global positioning for accurate time synchronization and location

Additional information


, ,


Cirrus Research


, , , ,

Monitoring Duration


Invictus Noise Monitor

User Manual

Invictus Noise Monitor


Invictus Windshield

User Manual

Invictus Weather Sensor

User Manual

Invictus 3G/GPRS Modem

User Manual

Invictus CF Card Replacement Instructions

User Manual

There are no reviews yet.

Be the first to review “Invictus Environmental Noise Monitor”

Your email address will not be published.

You may also like