As promised in the last blog article that updated you on what Cirrus Research is doing following the UK lockdown, here is the third daily business update.
COVID-19 Business Update #4

Questions & Answers
As promised in the last blog article that updated you on what Cirrus Research is doing following the UK lockdown, here is the third daily business update.
Cirrus Research is pleased to announce the addition of two all-new dual-level acoustic calibrators to our range of market-leading instrumentation. The CR:516 and CR:517 dual-level acoustic calibrators can calibrate sound level meters and noise dosimeters in the field, using either the 94dB at 1kHz or 114dB at 1kHz levels that are featured as standard. These new dual-level acoustic calibrators are Read More…
The latest release of our NoiseTools software is now available to download!
Following the adjustment in the UK lockdown guidance, many of you may be starting to return to work. If you’re tasked with measuring and monitoring noise, you may be wondering how best to do it while ensuring you keep to social distancing guidelines. Here are some of the things you can do to stay as safe as possible while gathering Read More…
The latest release of our NoiseTools software is now available to download!
If you work in health and safety or noise measurement, you might be wondering just how you’re supposed to collect the data you need whilst ensuring you stay at least two meters away from other people.
We often get asked whether it’s possible to calculate the overall dB(A) value from a set of 1:1 octave band value. The short answer is yes, but there are a few things to consider, in terms of how the data has been measured and what it is being compared to.
On your sound level meter or noise meter, you will often see references to frequency weightings, but what does this mean?
Following the result of the UK General Election in December 2019, the United Kingdom will be leaving the European Union on January 31st 2020. I’ve covered this topic a few times on our blog and on social media. Still, now we know that the UK will be withdrawing from the EU, I thought it would be in the interests of all our customers and followers, to explain what this means in terms of our business and our relationship with you.
The latest version of NoiseTools is now available. Check out what’s new and download here.