The environmental noise measurement kits from Cirrus Research provide a robust, reliable solution for short, medium and long-term measurements in any environment.
Protecting your sound level meter and microphone capsule from adverse weather and environmental conditions, the kits provide power, security and connectivity for your Optimus+ sound level meter under any conditions giving you accurate, informative and actionable data that allows you to stay compliant and informed, wherever you are.
When combined with the power of the industry-leading Optimus+ sound level meters, the new outdoor kits provide a powerful and cost-effective way to stay in control of noise levels in any environment.
*Some features are dependent upon the type of Optimus+ sound level meter used.
Optimus Cloud is a web-based platform that allows Cirrus Research noise measurement instruments to communicate with either the NoiseTools desktop software, the Optimus Cloud Notifications App or a web page on a hand-held device such as a smartphone or tablet.
Optimus Cloud works with the CK:685 Environmental Noise Measurement Kits and the Optimus+ Green sound level meters.
When used with an Optimus+ Green sound level meter, Optimus Cloud allows real-time notifications to be sent directly to the Notifications App, removing the need for costly SMS subscriptions.
By using the power of the level, rate of change and frequency-based triggers within the Optimus Green instruments, notifications can be sent when specific noise conditions occur.
Trigger rules can be as simple or complex as needed. For example, triggers can be set to activate when:
The power and sophistication provided by the triggers within the Optimus Green Sound Level Meters allows almost any noise condition to be monitoring and notifications sent when those conditions are breached or exceeded.
Optimus Cloud allows these triggers notifications to be sent quickly and easily to the Notification App, which is available for iOS & Android, giving you the power to stay informed and in control of your noise measurements.
Our Environmental Noise Measurement Kits have been specifically designed to be used in harsh environments, such as on construction sites or where there is a risk of damage to the sound level meter or microphone.
The solid, robust and rugged case protects your sound level meter from damage and tampering whilst the purpose designed outdoor microphone provides protection for the microphone capsule. We've used professional-grade connectors (not just slots in the case which can allow moisture to get into the case) as well as ensuring that you can transport all of the kit inside a single case, making it easy for you to install, collect and gather data.
When you buy a Cirrus Environmental Noise Measurement Kit, you benefit from over 40 years experience in the design, manufacture and support of noise measurement equipment that has been designed to be used outdoors and over long periods of time.
For peace of mind, your investment is also backed by our industry-leading 15 year warranty.
It's not just a sound level meter inside a box, it's a Cirrus Environmental Noise Measurement Kit.
The environmental noise measurement kits provide weather protection for the sound level meter and the microphone, allowing for noise measurements over long periods where the equipment is unattended.
This allows effective, accurate noise measurements to be made where it’s not possible to have staff on-site with the equipment at all times.
For construction sites, receiving real-time alerts when pre-set noise limits have been exceeded, or are close to being exceeded, can be an effective noise control process.
As this information can be provided in real-time (either to staff on-site or to a remote office) it can enable site managers to investigate the source of the noise and to take quick, effective actions to remedy the issue.
The Optimus Cloud Notification App provides real-time notifications and alerts, allowing for effective control of construction site noise levels.
In many environmental noise monitoring applications, having the ability to download measurements remotely, when the equipment is located far away, can be vital.
The CK:685B variants include the remote communication option and allow for measurement data to be downloaded, the instrument configured and real-time alerts to be sent to the Optimus Cloud Notification App.
For environmental impact assessments such as a BS4142 application, measurements when noise sources are not operating (over a weekend for example) can be critical in determining if there is significant impact when the site is in operation.
By using an environmental noise measurement kit, data can be gathered over extended periods when noise sources are and are not operating, allowing more robust assessments to be made.
Logging data over long periods before, during and after the construction of a wind farm can often be the only way to effectively judge the impact of operations and the environmental noise measurement kits can assist in this task.
The advanced triggers in the Optimus sound level meters can provide real-time alerts when overall levels or specific frequencies are exceeded as well as when tonal noise is detected.
The CK:675B version of the Environmental Noise Measurement Kit is supplied complete with all of the parts needed to effective noise measurements outdoors, in any environment.
Simply add an Optimus Sound Level Meter and Acoustic Calibrator and you have a cost effective, robust system that can help you make accurate, actionable noise measurements anywhere, at any time.
For remote access to the instrument, the CK:685 kits include a GPS receiver and modem which, when used with Optimus Cloud, allow for measurements to be downloaded to the NoiseTools software, the instrument configured and alerts sent when pre-set noise conditions are met.
Alerts can be sent directly to the Optimus Cloud Notification App, via email or SMS1 text, all of which can be easily configured by logging into the Optimus Cloud.
The environmental measurement kits can be ordered with or without the Modem/GPS option or with and without one internal battery pack/charger using the following product codes.
|Code||Description||Included Modem & GPS|
|CK:675B||Environmental Noise Measurement Kit||No|
|CK:685B||Environmental Noise Measurement Kit||Yes|
Please note that the kits do not contain a sound level meter or acoustic calibrator.
|Acoustic Measurements||Determined by Optimus Green Sound Level Meter|
|Microphone Capsule||From Optimus Sound Level Meter
The microphone capsule provided with the sound level meter should be used with the MK:172 outdoor microphone to maintain the calibrated measurement chain.
|Connectors||Microphone input from MK:172 Outdoor Microphone
|External power||12-18v DC|
|Weight & dimensions||
14.1/31 lbs including 2 x CB:673 batteries, charger & MK:172 Outdoor Microphone
14.5 kg/32 lbs including modem, 2 x CB:673 batteries, charger & MK:172 Outdoor Microphone
4.4 kg/9.7 lbs
335mm with 90mm UA:253 coated windshield & birdspike
Includes 10m cable with connector
For detailed specifications for the Optimus Sound Level Meters, please refer to the appropriate product data sheet.
Dimensions & weights do not include the optional CT:9 Tripod.
The CK:685B version of the environmental noise measurement kit include a modem for remote data connection to the Optimus Cloud. This modem provides multi-region approvals and certifications and can be used with a standard SIM card.
The kits have been designed to be used with the Optimus Green Sound Level Meters and can be used with instruments with firmware version v3.0 shipped from 1st February 2018.
Instruments with firmware version 2.9 or earlier will need to be updated to version 3.0. Please contact Cirrus Research for details of update options.
Let us help you find the best environmental noise measurement solution to meet your needs.