Class 2 sound level meter. Type 2 sound level meter

Optimus class 2 sound level meter and Trojan2 noise recorder [Optimus sound level meter and Trojan2 noise recorder]

Class 2 sound level meter Trojan2
Class 2 sound level meter with a Trojan2

Class 2 sound level meter provides a high level of performance. Cirrus Research manufactures a variety of sound level measuring equipment that meet the Class 2 standard requirements. The standard fulfils the control of noise at work regulations and many more.

Class 2 sound level meter has a high level of accuracy.  At the frequency level of 1kHz, the tolerance limit for Class 2 is at +/- 1.4dB. 

The Type 2 standard is approximately equivalent to the Class 2 standard. However, the Type 2 instruments will not meet all the new requirements for the Class 2 standard.

Cirrus Research has a variety of Class 2 products in its Optimum series. The Class 2 products have functions that range from basic sound level measurements to advanced frequency analysis and tonal detection.

Cirrus Research also manufactures the Trojan2 sound recorder. The Trojan2 is designed in collaboration with the local councils, environmental health officers and housing associations to measure, monitor and record noise nuisance.  


Why choose the Optimus, Class 2 sound level meter?

  • The Optimus sound level meter fulfils the IEC 61672-1:2002 requirements for a Class 2 Instrument.
  • The Optimum series provides a range of optional functions to suit your requirements. The functions include frequency analysis, tonal detection and audio recording.
  • Class 2 sound level meter simultaneously records all acoustic parameters to save time.
  • The meter has simple functionality and is easy to use.
  • The sound level meter provides sound level, data logging, audio recording, frequency analysis, NR and NC curves, tonal noise detection and Ln statistical values option.

Why choose the Trojan2 sound recorder?

  • The sound recorder system is easy to use.
  • The noise nuisance mode is automatically configured.
  • The Trojan2 is a highly intelligent acoustic calibrator.
  • The system is a full Class 1 unit with PTB Type Approval.
  • The Trojan2 automatically adjusts to temperature and barometric pressure.
  • High quality, high resolution audio recording.
  • Lightweight and discreet.
  • Secure and tamper proof.

Cirrus Research offers the following.

  • Class 2 sound level meters include an analytic software called NoiseTools. The software can quickly and simply download, analyse and share the noise measurement data.
  • The sound level meter comes with a 15 year warranty.
  • Technical support is available from the manufacturers to solve problems.

Contact Cirrus Research plc