Available from Cirrus Research, the
Optimus Green is a new sound level
meter for environmental, occupational
and industrial hygiene noise. It
combines features from the existing
Optimus range with the latest
technology and functionality
necessary for environmental noise to
be accurately measured.

Features include: Real-time octave
1:3 band filters, measuring from
6.3Hz to 20kHz to accurately show
variants in types of noise to help
determine its source; repeating
measurements; audio recording
during measurement; and VoiceTag
audio recording before each
measurement for note taking.