For environmental noise, the Optimus Green sound level meter is the ideal instrument

Simple to use with the very highest level of performance, you can be sure that an Optimus Green will give you what you need.

Real-time 1:1 and 1:3 Octave Band filters.

If you need to analyse the noise in terms of frequency, 1:1 or 1:3 Octave Band Filters are commonly used.

The Optimus Green instruments can provide real-time 1:1 and 1:3 Octave Band, depending upon the version.

Audio Recording

A feature unique to the Optimus Green sound level meters is the Audio Recording during measurements. You can record the actual noise during a measurement by either pressing the Audio Start/Stop buttons or by using the triggering functions.

Data logging with repeating measurements

To make sure that you capture all of the information you need, the Optimus Green instrument can make continuous measurements over long periods.

The Optimus Green instruments are supplied with 4GB of memory as standard, capable of storing noise measurements for long periods.

Simultaneous measurement & data logging of all available parameters

  • Simultaneous A, C & Z Frequency Weightings
  • Simultaneous F, S & I Time Weightings
  • Real-time 1:1 & 1:3 Octave Band Filters
  • NR & NC values & curves on screen
  • Tonal noise analysis
  • Up to 28 statistical Ln % values
  • Single 120dB measurement range
  • Acoustic Fingerprint™ audio triggering, recording & alerts during measurements for replay and analysis
  • VoiceTag™ voice note recording
  • AuditStore™ measurement verification
  • Repeating measurements with manual or automatic control
  • Pause & Back Erase functions
  • High resolution colour OLED display and back-lit keypad for night-time measurements
  • 4GB memory capable of storing over 10,000 measurements (expandable up to 32GB)
  • Compatible with CK:670 & CK:680 outdoor noise measurement kits
  • Measure up to 170dB with the optional MV:200EH microphone system

Specifications

Which instrument is best for you:

CR: 172A and CR:171A
  • Class 2 and Class1 Integrating Sound Level Meter
  • Real-time 1:1 Octave Band Filters,
  • Audio Recording
  • Datalogging
  • VoiceTag audio recording
CR:172B and CR:171B
  • Class 2 and Class1 Integrating Sound Level Meter
  • Real-time 1:1 and 1:3 Octave Band filters
  • Audio Recording
  • Data Logging
  • VoiceTag audio recording

Applications

  • Environmental noise impact assessments over short or long periods
  • Occupational and Industrial Hygiene Noise evaluations
  • Tonal analysis using 1:3 Octave Band Filters
  • Detailed analysis using Audio Recording
  • Noise Ordinance and Community Noise Assessments
  • Hearing Protector Selection using HML or 1:1 Octave Band Methods
  • General Noise Measurements
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