Sound Level Meter

Measure and assess workplace, environmental, machinery and product noise with a sound level meter suited to your application. Metromatics supplies portable Class 1 and Class 2 versions, data-logging instruments and noise-monitoring solutions for customers across Australia and New Zealand.

Our range supports applications from straightforward noise checks through to precision acoustic measurements and detailed analysis. Available capabilities include sound pressure level measurement, time and frequency weighting, data logging, statistical analysis and long-term noise monitoring.

What Is a Sound Level Meter?

It measures sound pressure and displays the result in decibels (dB). It typically combines a microphone, preamplifier, signal processor and display to provide repeatable measurements of noise levels.

Depending on the model, measurements may include:

Sound pressure level (Lp or SPL)
Equivalent continuous sound level (Leq)
Peak sound level (Lpeak)
Maximum and minimum sound levels
Fast, Slow and Impulse time weighting
A, C and Z frequency weighting
Logged and statistical noise data

Class 1 and Class 2 Sound Level Meters

Sound level meters are commonly classified according to IEC 61672.

Class 1 provide greater precision and a wider frequency range. They are generally selected for environmental assessments, engineering investigations, laboratory testing, product development and applications where measurement accuracy is critical.

Class 2 are suitable for general-purpose noise surveys, workplace checks, machinery assessments and other applications where dependable field measurements are required without the higher performance of a Class 1 instrument.

The correct class will depend on the applicable standard, required accuracy, measurement environment and how the results will be used.