The optimus range of sound level
meters from Cirrus Research
combines practicality with smart
design and advanced technology.

It takes just three button presses to
make a noise measurement: On,
Calibrate and Start. The
instrument takes all measurements
simultaneously before displaying
results on an OLED display. New
software allows voice tags to be
recorded for future reference.

To ensure measurements
can be validated, instruments
feature the LifeTime archive.

This stores the most important
parameters into a secure
section of memory which
can only be downloaded
using a special software program.