Class 1 sound level meter. Type 1 sound level meter

Optimus class 1 sound level meter [Optimus sound level meter]

A range of Class 1 sound level meter

The Class 1 sound level meter provides the highest level of performance available. Cirrus Research manufactures a variety of sound level measuring equipment that meets the Class 1 standard requirements. The standard fulfils the UK Control of Noise at Work Regulations, the OSHA Occupational Noise Standards and many more, making it ideal for both environmental and occupational noise measurements.

The Class 1 sound level meter has the highest level of accuracy.  At the frequency level of 1kHz, the tolerance limit for Class 1 is at +/- 1.9dB. 

The Type 1 standard is approximately equivalent to the Class 1 standard. However, the Type 1 instruments will not meet all the new requirements for the Class 1 standard.

Cirrus Research has a variety of Class 1 sound level meters in its Optimus series. The Class 1 products have functions that range from basic sound level measurements to advanced frequency analysis and tonal detection.


Why choose the Optimus Class 1 sound level meter?

  • The Optimus sound level meter fulfils the IEC 61672-1:2002 requirements for a Class 1 Instrument.
  • The Optimus series provides a range of optional functions to suit your requirements. The functions include frequency analysis, tonal detection and audio recording.
  • The sound level meter simultaneously records all acoustic parameters to save you time.
  • The meter has simple functionality and is easy to use.
  • The Class 1 sound level meter includes the NoiseTools analysis software to easily download, analyse and save the data.
  • The Optimus sound level meter comes with a 15-year warranty.
  • Technical support is available from the manufacturers to solve your problems.

The Optimus Class 1 sound level meter can be used for the following applications.

  • Environmental noise assessments
  • Occupational and industrial hygiene noise evaluations
  • Noise exposure calculations
  • Selection of hearing protectors using the HML or Octave Band methods
  • Machinery noise assessment
  • Noise ordinance and community noise assessment
  • General noise measurements

Technical specifications for Optimus Class 1 sound level meter

  • The Optimus Class 1 sound level meters measure to 140dB(A) and 143dB(C).
  • The sound level meter provides sound level, data logging, audio recording, frequency analysis, NR and NC curves, tonal noise detection and Ln statistical value options
  • The Optimus sound meter has 4GB memory. An additional 32GB of memory is available
  • The sound level meter uses 4 x AA Alkaline batteries that typically have a 12-hour battery life
  • Size: 283mm x 65mm x 30mm
  • Weight: 300gms/10oz

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