Optimus+ Green - Sound level meters

Available on order
Tax excluded Delivery in 2-4 weeks
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If you need a customized offer, or you can't find the configuration you need, do not hesitate to contact us.

We also offer the post sale services

  • Ordinary and extraordinary maintenance
  • Installation
  • Workers training
  • Spare parts
  • Calibration

For occupational and environmental noise measurements

The Optimus+ Green sound level meter is the ultimate instrument when you need a sound level meter for both environmental and occupational noise.

All of the features of the Optimus+ Red and Yellow instruments are available, as well as 1:3 octave band filters, tonal noise detection, and 1/10th monitoring, perfectly suited for windfarm monitoring.

Optimus+ Green instruments also provide advanced audio recording during measurements, along with up to 28 statistical Ln values. Combine Optimus+ Green with our environmental noise kits for fully-weather- protected outdoor noise measurements


  • Simple noise measurements
  • Alarm testing
  • Vehicle noise control
  • Noise ordinance and general noise measurements
  • Noise at Work surveys and noise exposure calculations
  • Occupational noise and industrial hygiene evaluations
  • Hearing protection selection
  • Environmental noise measurements
  • BS:4142 surveys
  • Environmental impact assessments
  • Occupational noise measurements

Why choose Optimus+ Green?

Optimus+ Green includes the industry-leading features common to all Optimus+ sound level meters, in addition to the following:

  • Audio recording during measurements with
  • Acoustic FingerprintTM technology
  • Up to 28 statistical Ln values
  • 1:1 and 1:3 (B & C models only) octave band filters

Included accessories

  • User manual
  • Certificate of Calibration
  • USB data/power cable
  • NoiseTools software USB stick (requires B, C or D version of instrument to download measurements)
  • CR:514 Class 2 or CR:515 Class 1 acoustic calibrator
  • UA:237 90mm windshield
  • CK:300 carrying case
  • User manual and Certificates of Calibration
  • USB data/power cable and NoiseTools software USB stick (requires B or C version of instrument to download measurements)
Battery life
4 x AA alkaline
-10°C to +50°C
283mm x 65mm x 30mm
300g / 10oz
20dB to 140dB RMS Single Range
4GB Expandable

AC & DC output via ZL:174 (2 x Phono, 1m)
USB Type B to PC
Multi-pin IO for external power via ZL:171 cable (2.1m)

Specific References