SoundAdvisor™ - Sound Level Meter | Campbell Associates
SoundAdvisor™ – Sound Level Meter

SoundAdvisor™ – Sound Level Meter

Complete Environmental Noise Insights

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SoundAdvisor™

The SoundAdvisor Sound Level Meter Model 831C is designed to make acoustic measurement easy. Due to its colour display, connectivity, extensive software features and small form factor the SoundAdvisor is...

Key Product Features

Model: 831C

Class 1

Class 1

Up to 18 Hours

Up to 18 Hours

20 ms Logging

20 ms Logging

Frequency Capture 1/1 & 1/3 Octaves

Frequency Capture 1/1 & 1/3 Octaves

Audio Recording

Audio Recording

Back-Erase

Back-Erase

G4 Utility Software or Atlas App Included

G4 Utility Software or Atlas App Included

2 Year Warranty

2 Year Warranty

Wireless Connectivity

Wireless Connectivity

Vibration Analysis

Vibration Analysis

FFT Mode

FFT Mode

Reverberation Mode

Reverberation Mode

Precision You Can Hear, Reliability You Can Trust

The Larson Davis 831 Sound Level Meter is ideal for environmental measurements due to its precision, wide dynamic range, and ability to capture long-term noise data with real-time analysis.

Its rugged design, advanced data logging, and remote monitoring capabilities make it perfect for assessing noise pollution, compliance, and environmental impact studies.

FFT Sound & Vibration Analysis

FFT Sound & Vibration Analysis

Fast Fourier Transform (FFT) analysis delivers precise narrow-band filtering for single-channel acoustic and vibration sources, making it ideal for machinery diagnostics, product testing, source identification, tonality assessment, fault detection, and vibration troubleshooting.

With adjustable FFT settings, SoundAdvisor enables targeted spectral analysis of specific acoustic and vibration events, providing objective measurements directly in the field. Supports Standard 1996-2.

Salford University Guidance 2009

The Ultimate Acoustic Analysis Solution

For acoustic consultants looking for a versatile, user-friendly solution, the SoundAdvisor is a valuable investment for both handheld and long-term monitoring. It simplifies complex noise assessments with real-time octave and 1/3 octave band analysis, audio recording with pre and post-trigger settings, and a low noise option compatible with PCB low-noise microphones.

The back erase function enhances data accuracy, while the reverberation mode is perfect for building acoustics analysis.

Airport monitoring solutions
The Ultimate Acoustic Analysis Solution

Key Product Specifications

Leq, Lmax, Lmin, Lpeak, Ln (6 values), LDN, LDEN

Leq, Lmax, Lmin, Lpeak, Ln (6 values), LDN, LDEN

2 GB Internal Memory, Expandable by USB

2 GB Internal Memory, Expandable by USB

17 dB - 140 dB Dynamic Range

17 dB - 140 dB Dynamic Range

Colour, Touch Screen Display

Colour, Touch Screen Display

Low Noise

Low Noise

Maximum cable length 60m

Maximum cable length 60m

Real-Time Markers

Real-Time Markers

Jack & AC Output

Jack & AC Output

4-AA (LR6) NiMH, 1.5 V Lithium or Alkaline cells

4-AA (LR6) NiMH, 1.5 V Lithium or Alkaline cells

Low Power Mode 1.1w

Low Power Mode 1.1w

Low Temperature Operation -30 °C to 50 °C

Low Temperature Operation -30 °C to 50 °C

Back-Erase

Back-Erase

Software Options

SoundExpert

Find out more

NoiseSens

Find out more

Product Accessories

Every product needs flexibility to do whatever you want it to.

Download Datasheet
Precision Sound Level Calibrator. Output level of either 94.0 or 114.0 dB.
LD-CAL1200 Calibrator

LD-CAL1200 Calibrator

LD-CAL1200

ICP® Low noise microphone & preamplifier system, 6.5 dB A-weighted typical noise
6.5 dBA Low Noise Microphone

6.5 dBA Low Noise Microphone

LD-378A04

0.25 inch microphone to 0.5 inch preamplifier adaptor
0.25

0.25" Microphone to 0.5" Preamplifier adaptor

LD-ADP043

Model 831C Sound Level Meter preamplifier for 0.5 in free-field or random incidence prepolarized microphones
Preamplifier 0.5

Preamplifier 0.5"

LD-PRM831

Permanent Outdoor Preamplifier with free-field microphone with Remote Calibration Check, humidity reading and heater, for prepolarized microphone. Random or 90 degree response can be selected on the Model 831C
Outdoor Microphone and Preamplifer

Outdoor Microphone and Preamplifer

LD-PRM2103-FF

0.5 inch random incidence, prepolarized condenser microphone 50 mV/Pa, 3.15 Hz to 16 kHz (±2 dB)
3.15 Hz to 16 kHz Condenser Microphone

3.15 Hz to 16 kHz Condenser Microphone

LD-377C20

0.25 inch pressure, prepolarized condenser microphone typical sensitivity = 1.6 mV/Pa, 4 Hz to 70 kHz (±2 dB)
4 Hz to 70 kHz Condenser Microphone

4 Hz to 70 kHz Condenser Microphone

LD-377C10

0.5inch free-field, prepolarized condenser microphone, typical sensitivity = 50 mV/Pa, 3.15 Hz to 20 kHz (±2 dB)
3.15 Hz to 20 kHz Condenser Microphone

3.15 Hz to 20 kHz Condenser Microphone

LD-377B02

Portable folding 100 Watt solar panel with integrated stand and carrying case
100 Watt Solar Panel

100 Watt Solar Panel

LD-SLP002

Solar charge controller, 10 A, used in EPS044 and NMS044 configurations with SLA batteries
Solar Charge Controller

Solar Charge Controller

LD-PSA038

AC power supply, 15 V, 90 W, with MC4 connectors for use with EPS044 & NMS044
AC Power Supply

AC Power Supply

LD-PSA039

Battery Charger for SLA batteries with Anderson Powerpole connectors. Input: 100–240 VAC, 50–60 Hz, 0.80–035 A. Output: 14.7 VDC, 3 A, Output cable length 1 ft (30 cm)
Battery Charger for SLA batteries

Battery Charger for SLA batteries

LD-PSA040

Battery Charger for LiFePo batteries with Anderson Powerpole connectors. Input: 100–240 VAC, 50–60 Hz. Output: 3 A, cable length 1 ft (30 cm)
Battery Charger for LiFePo

Battery Charger for LiFePo

LD-PSA043

Sierra Wireless Model RV50X cellular gateway to add Internet connectivity through cellular network to 831C. Choose suffix NA/EMEA for North America, Europe, Middle East & Africa. Choose suffix APAC for rest of world. Requires option (831C-SW for direct USB connection).
Sierra Wireless Cellular

Sierra Wireless Cellular

LD-COM-RV50X

Case for Model 831C Sound Level Meter including (1) 21 Ah battery, charger (PSA032), internal preamplifier cable (CBL141), and power distribution cable (CBL151)
Case for Model 831C

Case for Model 831C

LD-EPS030-831

Noise monitor enclosure for 831C including CCS051, CCS052, BAT020 35 Ah SLA battery, ACC009, PSA038, CBL224-02, CBL225-01, CBL226-02 & CBL228-03
Noise monitor enclosure for 831C

Noise monitor enclosure for 831C

LD-EPS044-SLA

Environmental protection for 1/2 inch preamplifiers with windscreen, bird spikes, desiccants, and universal mounting
Outdoor Microphone Housing Kit

Outdoor Microphone Housing Kit

LD-EPS2116

Monopole for use in EPS044 and NMS044 systems
Monopole

Monopole

LD-ACC009

Screen Protector for 821/721 Models
Screen Protector

Screen Protector

LD-X21-SP

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