Cirrus Research offers a range of Class 1 and Class 2 handheld noise level meters and accessories to cover all noise measurement applications from simple noise tests to detailed noise analysis.

Our range of sound meters spans simple instruments that provide the measurement of sound pressure level, integrating-averaging instruments that provide Leq and occupational noise functions, as well as precision data logging noise meters with 1:1 & 1:3 real time octave band filters and in-measurement audio recording.

The Optimus+ sound level meters use the very latest technology to provide instruments that are simple to use whilst giving you the measurement information that you need to make an effective noise measurement.

All of our noise meters can be supplied as a complete noise measurement kit, which includes all of the accessories needed. The Optimus+ Green sound level meters can be used with an outdoor measurement kit, which provides weather protection for the instrument and microphone, allowing measurements to be made outdoors over long periods.