Optimus Sound Level Meters

Our range of optimus sound level meters allow you to cover almost every possible application where noise measurement is required.
  • High performance but simple to use
  • Simultaneous measurement of all noise parameters
  • Class 1 & Class 2 performance
  • Meet the latest sound level meter standards
  • NoiseTools measurement analysis software supplied free of charge
  • 15 Years Product Warranty

Sound Level Meters

Whether you need a simple optimus yellow for community noise checks, an optimus red for OSHA compliance and occupational noise measurements or an optimus green for outdoor and environmental noise measurements, we can provide you with the solution that matches your needs.

For assistance finding the optimal sound level meter for your noise measurement requirements contact us or try our product selector
Optimus Sound Level Meters from Cirrus

optimus green sound level meter for environmental noise measurement

Optimus Green

All the functions needed for environmental noise measurements

  • Environmental noise impact assessments over short or long periods
  • Tonal analysis using 1:3 Octave Band Filters
  • Detailed analysis using Audio Recording


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optimus red sound level meter for occupational and osha noise measurement

Optimus Red

All the functions needed for occupational noise measurements

  • OSHA HC & PEL, MSHA & ACGIH Noise Exposure Assessments
  • Hearing Protector Selection using HML or 1:1 Octave Band Methods
  • Noise Ordinance & Community Noise Assessments

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optimus yellow sound level meter for simple noise measurement

Optimus Yellow

All the functions needed for simple noise testing

  • Simple operation with the simultaneous measurement of all parameters
  • Fast, Slow & Impulse Time Weightings
  • Lmax & Lmin for each time and frequency weighting


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Acoustic Calibrators and Noise Measurement Kits

For handheld instrument calibration see our acoustic calibrators below. For the complete solution for outdoor environmental noise measurement our optimus outdoor measurement kits are ideal. If you need to complete solution for occupational and noise exposure measurement take a look at our complete safety managers noise measurement kits.

acoustic calibrators


Acoustic Calibrators
Our acoustic calibrators for handheld instrument calibration before taking your measurement

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outdoor evironmental sound level meter measurement kit


Outdoor Measurement Kits
Ideal for weatherproof outdoor environmental noise monitoring applications

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Safety Managers Kits
Complete occupational noise measurement kit contains an optimus and the doseBadge noise dosimeter

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Sound Level Meters by Class and Application
Sound Level Meter by Class/Type

Class/Type 1 Sound Level Meters
Class/Type 2 Sound Level Meters

Environmental and Occupational Sound Level Meters
Environmental & Occupational Sound Level Meters

The optimus green are the part of the optimus family and are designed for environmental, occupational, industrial and simple noise applications. All of the features of the optimus yellow and optimus red are available with the additional of real time 1:3 octave band filters, 14 statistical % Ln values, repeating measurements and audio recording during measurements. Leq, LEP,d, Lavg, TWA, LAE (SEL), Peak(C), OSHA, ACGIH, MSHA, Exposure Calculator, Real time 1:1 & 1:3 Octave Band Filters, Audio Recording, VoiceTag Audio Recording and Data Logging. A,C, & Z, Fast Slow & Impulse, Lmax, Lmin, % Ln statistical values.

Optimus Green CR:170 Series

    • CR:1720 Class 2 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc) & environmental noise functions
    • CR:1710 Class 1 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc) & environmental noise functions
    • CR:172A Class 2 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), environmental noise functions & Real-time 1:1 Octave Band Analyzer
    • CR:171A Class 1 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), environmental noise functions & Real-time 1:1 Octave Band Analyzer
    • CR:172B Class 2 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), environmental noise functions & Real-time 1:1 & 1:3 Octave Band Analyzer
    • CR:171B Class 1 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), environmental noise functions & Real-time 1:1 & 1:3 Octave Band Analyzer
    • CR:172C Class 2 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), environmental noise functions, Real-time 1:1 & 1:3 Octave Band Analyzer with Tonal Noise Detection &amp Audio Triggering
    • CR:171C Class 1 Optimus with VoiceTag, Audio Recording, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), environmental noise functions, Real-time 1:1 & 1:3 Octave Band Analyzer with Tonal Noise Detection &amp Audio Triggering

Occupational Noise and Industrial Hygiene Sound Level Meters
Occupational Noise & Industrial Hygiene Sound Level Meters

The optimus red instruments are the part of the optimus family and are designed for occupational and industrial measurements. All of the features of the optimus yellow are available with the additional of integrated noise functions such as Leq, LEP,d, Lavg, TWA, LAE (SEL), Peak(C), OSHA, ACGIH, MSHA, Exposure Calculator, Real time 1:1 Octave Band Filters, VoiceTag Audio Recording and Data Logging. A,C, & Z, Fast Slow & Impulse, Lmax, Lmin

Optimus Red - CR:160 Series

 

    • CR:162A Class 2 Optimus with Integrated Noise Functions (Leq, Lavg, TWA etc)
    • CR:161A Class 1 Optimus with Integrated Noise Functions (Leq, Lavg, TWA etc)
    • CR:162B Class 2 Optimus with VoiceTag, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc)
    • CR:161B Class 1 Optimus with VoiceTag, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc)
    • CR:162C Class 2 Optimus with VoiceTag, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc) & Real-time 1:1 Octave Band Filters
    • CR:161C Class 1 Optimus with VoiceTag, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc) & Real-time 1:1 Octave Band Filters
    • CR:162D Class 2 Optimus with VoiceTag, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), Real-time 1:1 Octave Band Filters & NR/NC curves on screen.
    • CR:161D Class 1 Optimus with VoiceTag, Data Logging & Integrated Noise Functions (Leq, Lavg, TWA etc), Real-time 1:1 Octave Band Filters & NR/NC curves on screen.

Simple Sound Level Meters
Simple Sound Level Meters

Designed for simple noise measurements with the very highest performance. A 120dB measurement range, OLED colour screen, optional data logging with a 4GB memory capable of storing over 10,000 measurements and very simple operation, the optimus yellow is ideal where performance is key but the application does not call for integrated or frequency measurements. Lmax, Lmin with A,C & Z along with Fast, Slow and Impulse Time Weightings are provided.

Optimus Yellow - CR:150 Series

    • CR:152B Class 2 Optimus with data logging & PC download
    • CR:151B Class 1 Optimus with data logging & PC download

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