Quantum Outdoor – Cloud-connected Remote Outdoor Noise Monitor

Cloud-based Monitoring

The Quantum Outdoor noise monitor is a fully automated cloud-based environmental monitor ideally suited for long-term remote measurements of various environmental conditions.

  • Fully integrated cloud-based solution for environmental monitoring
  • Class 1 noise monitor to IEC 61672-1
  • View live data from multiple locations simultaneously
  • Real-time SMS and Email alerts and triggers with audio capture
  • 1/1 and 1/3 octave band
  • LAeq, LAFmax and Ln statistical noise parameters
  • Integration of environmental sensors, including weather, air quality and vibration
Customise unit *

Choose from the standard Quantum Outdoor or customise your unit to suit your environmental monitoring needs

Includes everything you need to get started with your Quantum Outdoor

Customise your Quantum Outdoor Noise Monitor by choosing from a range of additional modules, power supplies and network connections

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SKU: CR920
Tag: Cloud-based Monitoring


The Quantum Outdoor - Cloud-based Outdoor Noise Monitor

Take your outdoor noise monitoring to the next level

The Quantum Outdoor noise monitor is a powerful outdoor noise monitor with built-in cloud connectivity, ideal for long-term unattended noise monitoring applications. It offers a complete noise monitoring solution by offering all the benefits of remote 24/7 noise monitoring and seeing noise level data on the MyCirrus cloud platform anytime, anywhere. With the ability to trigger events and record audio, The Quantum Outdoor noise monitor can send alerts and notifications to users using various methods allowing you to take corrective action in real-time. Configurable in any way as standalone instruments or combinations, The Quantum Outdoor noise monitor can be powered by PoE, mains, solar or battery. The Quantum Outdoor noise monitor can work in any environment for any industry:

Unattended environmental noise measurements
Industrial noise monitoring
Construction and demolition site noise monitoring
Measurement of noise to meet standards such as BS 4142 and BS 5228
Outdoor music, sports, and entertainment monitoring
24/7 Monitoring

Quantum Outdoor

Watch the Quantum Outdoor product video to find out more about how our Quantum Cloud platform can help you


Go beyond noise measurement: all your environmental monitoring data in one place

Besides the world-leading noise measurement technology from Cirrus Research, the Quantum Outdoor noise monitor is equipped to simultaneously measure dust, gaseous pollutants, and vibration, together with weather, wind speed and direction.

Weather data provides the context for noise levels and other environmental impacts and can help you make effective decisions to protect the environment and residents. Cirrus Research has partnered with Gill Instruments Ltd, experts in weather stations, to offer you the best solution for weather monitoring.


Two versions of Gill’s compact weather stations are available, the GMX200 and GMX600. Both integrate directly with the Quantum Outdoor remote noise monitor and give you access to comprehensive weather monitoring data, including:

Wind speed
Wind direction

Within the Quantum Portal, your weather data is displayed alongside your noise measurement information, allowing you to improve your understanding of noise impacts under varying weather conditions.

The Quantum Outdoor noise monitor offers monitoring equipment with sensors for fine dust, ultrafine particles and gaseous pollutants. Cirrus Research has partnered with South Coast Science, experts in air quality monitoring, to offer you the best out-of-the-box solution for urban air quality monitoring.


With the South Coast Praxis OPCube or Urban air quality monitor, you can detect critical environmental pollutants and particulates, including respirable particles with sizes PM 1, PM 2.5 and PM 10 (MCERTS certified for PM2.5 and PM10). These gases and particulates are found in vehicle and motor exhausts, smoke from burning oil and coal, and dust from demolition, construction, and quarrying.

Whether you work in heavy industry, transport and logistics or construction, ground vibration is a key environmental impact you need to monitor and control. Understanding the ground-bourne vibration levels you’re creating and the impact it may have on nearby residences or businesses regarding nuisance vibration or building damage is vital. Cirrus Research has partnered with Omnidots to provide you with the best vibration monitoring system for your needs – the Omnidots Swarm 2.1.

The Ground Vibration Monitor can either be integrated with our Quantum Outdoor for noise and vibration monitoring or used as a standalone monitor. The instrument’s highly accurate and sensitive seismograph measures the movement of molecular particles within the ground, measuring ground-borne vibration levels as peak particle velocity (PPV) in millimetres per second (mm/s).

Acoustic standards
IEC 61672-1:2013 (Class 1)
IEC 61260:1995 (1:1 and 1:3 octave band
ANSI S1.4 -1983 (R2006)
ANSI S1.43 – 1997 (R2007)
ANSI S1.11-2004 (1:1 and 1:3 octave band
EN 61000-6-3:2007+A1:2011
EN 61000-6-1:2007
Meets IP65
1/2” MK:224 free-field pre-polarised electret
Total Measurement Range
20 to 140dB RMS in a single range
Noise Floor
<19dB(A) Class 1 Frequency weightings
RMS & Peak: A, C & Z measured in parallel
1:1 octave bands: 31.5Hz to 16kHz
1:3 octave bands : 6.3Hz to 20kHz
Time Weightings
Simultaneous Fast, Slow and Impulse
Time History Data Rates
User selectable 10ms, 100ms, 500ms, 1 sec
Live data rate
1 sec
Live data view
Noise at work (LAF, LAeq & LCPeak)
Environmental (LAF & LAeq)
Custom (LAeq, LCeq, LZeq, LAFMax, LASMax,
LCPeak & LZPeak)
Measurement Control
User definable schedule measurements &
user selectable 5min, 15min, 30min, 1hr
repeat timers
Stored Values
LAeq, LCeq, LZeq, C-A, LAE, LEX8, LAFMax,
LASMax, LCPeak, LZpeak, LAF1, LAF5,
LAF10, LAF50, LAF95, LAF99, LAeqT1 &
1:1 octave bands: 31.5Hz to 16kHz
1:3 octave bands: 6.3Hz to 20kHz
Time history of 1:1 & 1:3 octave bands

Audio quality
Standard (16bit/16kHz)
High (24bit/48kHz)
200 x 850 x 122mm
(7.8 x 33.5 x 4.8”)
User selectable dual integrators OSHA HC,
Custom A & Custom B
Moving average
User selectable 5min, 15min, 30min, 60min
System Integrity Check (SIC)
Three frequency single level charge injection
500Hz, 1KHz & 8KHz
BK:901 wall mounting kit
Pole mount (standard option)
PoE IEEE 802.3af-2003 37V – 57V DC 12V
– 18V DC 1.5A
Power Consumption
<8w Operating conditions
Temperature -10 to 50°C (operational)
-20 to 60 °C (storage)
Humidity up to 95% RH non-condensing
Network Connections
4G with 3G fallback factory fitted with
Industrial multi-network SIM
Dual band Wifi (2.4GHz & 5GHz)

Additional information

Weight 5.00 kg
Dimensions 85.0 × 20.0 × 12.2 cm

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Cirrus Research

Monitoring Duration



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Quantum Outdoor Cloud-Based Noise Monitor

User Manual

Quantum Outdoor Cloud-Based Noise Monitor

Quick Start Guide

Quantum Outdoor Cloud-Based Noise Monitor


Praxis OPCube & Urban Air Quality Monitor


Omnidots Swarm Vibration Moniroting System


MaxiMet GMX200 & GMX600 Weather Station


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