Sound Level Meter or Sound Pressure Level Meter (SPL) measure acoustics. Intensity of sound wave is measured by built-in microphone, amplifier, frequency response networks and display.

Commonly used in noise pollution control, regulatory enforcement and studies for different kinds of noise, especially for industrial and environmental per IEC 61672 standard. Sound level meter calibration is always recommended by the experts to avoid any miscalculations because sound level meters are widely used to measure the noise of a particular sound in a standardized manner so that specific sound data may be used into some valuable resources, applications or devices like making community noise analysis, building acoustics, controlling industrial noise and doing machinery noise analysis. It is most recommended that all sound level meters must meet with a proper sound level meter calibration comparing with the standardized noise levels so they should always give accurate data about a certain sound level upto IEC 61672 standard.

Sound level meter measure very small changes in pressure. Microphone and sensitive components may drift due to handling or knocks, therefore crucial to have sound level meter calibration performed frequently ensuring sound level measurements are accurate and reliable.

Commonly calibrated brands Brüel & Kjær, Cirrus Research, Extech, Fluke, Kanomax, Rion, Testo.

Metcal can provide ISO 17025 accredited sound level meter calibration services, in compliance to Health and Safety regulations e.g. Occupational Safety and Health Administration (OSHA).

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