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Available to buy or hire are the Cirrus Optimus Yellow range of basic sound level meters from BSRIA Instrument Solutions
The Optimus Yellow instruments are state-of-the-art basic sound level meters that have been designed to meet the very latest standards for noise measurement instruments and provide the highest level of performance possible.
All of Optimus Yellow sound level meters will measure all of the available functions at the same time. This means that no matter what the display is showing, you can be sure that you can't choose the wrong function. For example, if you've set the instrument to display the Fast Sound Level and you find that you need Slow, just change the time weighting and you can see the information you need.
Important note The Noisetools software supplied with the product only provides live data and time history views of the last measurement run only for the type A models . For export of data into spreadsheets such as Excel a type B (logging) version of the instrument is required.
The Optimus Yellow instruments are available in a number of configurations including complete measurement kits with acoustic calibrators and carry cases, please refer to the datasheet for the full specifications.