- Model 831 - Sound Level Meter

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Larson Davis - Model 831 - Sound Level Meter

Larson Davis Model 831 Class 1 Sound Level Meter. This versatile instrument, with high definition display, performs the functions of several instruments. It puts the combined features of a precision Class 1 sound level meter, environmental noise analyzer, personal noise dosimeter, and a real-time frequency analyzer in the palm of your hand. The Larson Davis Model 831 is a fifth generation Larson Davis sound level meter, designed for simple single handed operation, yet is fully featured, smart and versatile with an ever expanding firmware platform. The design of the Model 831 was based on countless inputs from our customers. It expands upon the Larson Davis tradition of delivering value, innovation and function in a rugged single-handed expandable package and is backed by our 2-year Factory Warranty, 24-hour application support and accredited factory service/calibration.


  • Class 1 sound measurements to the latest international standards
  • Environmental noise assessment and monitoring
  • Reverberation time measurement and building acoustics
  • Tonality
  • Occupational noise evaluation
  • HPD selection
  • Noise reduction validation
  • Product quality control
  • NVH correlation
  • In-Situ sound power measurements
  • Real-time analysis of sound in 1/1 and 1/3-octave bands
  • Code enforcement

Standard Features

  • IEC 61672-1:2002, ANSI S1.4, ANSI S1.43 Class 1 integrating sound level meter
  • Voice Annotation
  • ANY LEVEL Display
  • User programmable run modes
  • Six user selectable statistics (Ln)
  • Threshold exceedance data
  • Community Noise Calculations (Lden, CNEL)
  • GPS Global Positioning Support
  • Back Erase Functionality
  • Normalized Spectrum
  • User-selectable screen layout and lockable setup protection
  • Remote access and field upgradable
  • Wide variety of non-proprietary powering options including – 4XAA internal batteries, AC, USB and external batteries

Firmware Options

Larson Davis, a division of PCB Piezotronics
Larson Davis, a division of PCB Piezotronics
3425 Walden Avenue
Depew ,  NY 14043


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