The Cirrus sound level meter range for any location

Cirrus sound level meter [Optimus+ red, green and yellow]

A Cirrus sound level meter in use in a factory.
A Cirrus sound level meter measuring vehicle noise.
A Cirrus sound level meter in use assessing environmental noise.

The Cirrus sound level meter range includes a decibel meter for every location. Optimus+ noise meters have an ergonomic design, making them easy to use. The devices use the latest acoustic technology to ensure precision. The Cirrus range is ideal for environmental, occupational and community noise assessments.

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The Cirrus sound level meter range

Three types of Cirrus sound level meter are available (red, yellow and green). Each handheld decibel meter is available as a class one or two device. All of them have Bluetooth connectivity, allowing you to control the noise meter from your phone.

Optimus+ red

The Optimus+ red is designed for occupational and industrial noise measurements. The device complies with OSHA HC and NC, MSHA HC and ACGIH regulations and is ideal for any workplace noise assessment:

  • Machinery noise tests.
  • Vehicle noise measurements.
  • General noise assessments.
  • Community noise measurements.
  • Hearing protection assessments.

Optimus+ green

The Optimus+ green is perfect for environmental and industrial noise assessments. Combine the decibel meter with an outdoor measurement kit to record data in the same place for an extended time.

Bluetooth control, via mobile device, and remote data downloading increase the convenience of the sound meter. The device also complies with international standards (ISO 1996-2:2007), making it suitable for any application.

Optimus+ yellow

The Optimus+ yellow is the ideal device for basic sound level assessment:

  • Simple noise level testing.
  • Noise ordinance enforcement.
  • Community noise assessments.
  • Fire and emergency alarm testing.
  • Machinery servicing and maintenance.

The handheld noise meter accurately measures basic acoustic data, such as sound level (SPL) and maximum sound level (Lmax). The sound meter is easy to upgrade if you want to add advanced functionality, making it a great long-term investment.

Contact Cirrus Research plc to discuss the best sound level meter for you.

Features and benefits of the Cirrus sound level meter range

All Optimus+ decibel meters share these features:

Features Benefits
Simple operation

An ergonomic design makes your device easy to use, even through gloved hands.

120 decibel range Measure sound from 20 decibels to 140 decibels. Ideal for all noise assessments.
Simultaneous noise measurement The device records all noise parameters at the same time. You always record all the data you need.
Four gigabyte memory Store over 10,000 measurements. Expand the device’s memory to 32 gigabytes for more storage space.
High-resolution colour screen and backlit buttons Use your decibel meter at night and in low light.
Bluetooth connectivity Use your phone to control your Optimus+ decibel meter.
Voice recording functionality Record 30 second voice notes about the location, weather and other environmental factors.

Cirrus sound level meter technical specifications

  • Dimensions (millimetres): 283 x 65 x 30
  • Weight: 300 grams
  • Batteries: 4 AA batteries
  • Operating temperature: -10°C to +50°C
  • Operating humidity: Up to 95% relative humidity
  • Language options: English, French, German, Spanish and Italian. Other languages may be available on request.

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Contact Cirrus Research plc