Noise Meter Guide

The SoundExpert 821 is a Class 1 measurement device which is intended for use as a handheld measurement device.

Local Measurement Data

Data saves internally to the meters 4 GB Industrial card and supports up to 128 GB.

The instrument can measure parameters such as LAeq, Lmax, Lmin, Ln, Lpeak in A, C & Z weighting with octave and third octave logging and logging down to 100 ms.

The instrument is powered by lithium battery which will power the the device for up to 40 hours of a single charge!

Download Utility Software (G4)

The instrument uses G4 utility for transfer of the measurement data to excel and also generates charts and reports. This software is included free of charge with your purchase of a Larson Davis meter.

Reporting Software (DNA)

The instrument uses DNA software for reporting and recalculating measurement data. A licence is required to operate the software.

Calibration

To calibrate your noise monitor you will need either a 94 dB or 114 dB calibrator with a 1/2 microphone input or adapter. Place the calibrator on the end of the microphone and calibration will start automatically!

Laboratory calibration is required every two years for the instrument and every one year for the calibrator which can be done in our accredited UKAS laboratory.

Instrument Guides

Software Installation Guides (Coming soon!)

Software Guides (Coming soon!)

Larson Davis supply G4 utility software for the downloading and reporting of your instrument data.

Software Downloads

The instrument software can be downloaded here:

https://www.larsondavis.com/product-support