Going green

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.