Sound Level Meters

Scarlet’s integrating sound level meters, available in both Class 1 and Class 2 standards, meet a wide range of worksite monitoring needs. From simple models with basic weighting functions to advanced analyzers featuring optional 1/1 and 1/3 octave band analysis and GPS for precise measurements and location tracking.

What is Sound Level Meter?

A sound level meter (SLM) is an instrument used to measure sound pressure levels (SPL) by detecting changes in air pressure caused by sound waves. The reuslts are displayed in decibels on the device. Beyond its primary function, Scarlet integrates IoT technology into its SLMs, allowing seamless connection with specialized PC software for real-time noise monitoring and historical data export. This supports advanced analysis and efficient noise management.

What is the difference between Class 1 & Class 2 SLM?

Sound level meters are classified into Class 1 and Class 2 according to international standards such as IEC 61672-1:2002 (or equivalents like BS EN 61672-1:2003). Class 1 meters meet higher performance and accuracy requirements and are typically used for applications demanding precise noise measurements, such as environmental monitoring, research, and regulatory compliance. In contrast, Class 2 meters have lower accuracy but are more user-friendly and suitable for general workplace noise surveys and routine measurements.