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SoundExpert LD-821ENV
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SoundExpert® Sound Level Meter LD-821ENV

  • Class 1 or 2 precision sound level meter ANSI S1.4-2014 Class 1 IEC 61672-1:2013 Class 1
  • Large responsive touch display
  • Long battery life – up to 40 hours
  • Automatic data download via Bluetooth or USB options
  • Flexible powering options, including wireless charging

Product Noise Evaluation and Environmental Noise | Series 821ENV

Want a sound level meter that works like your phone? The SoundExpert® Model 821ENV does just that with a large touch display viewable in any condition. Whether making handheld noise measurements or measuring environmental noise for several weeks, the SoundExpert Model 821ENV is an excellent choice for ease of use and low-power operation. SoundExpert is also available in a Class 2 version, SoundExpert Model 721ENV. Please see Configurations below or download the datasheet for more details.

Highlights

  • Large responsive touch display
  • Long battery life – up to 40 hours
  • Automatic data download via Bluetooth or USB options
  • Flexible powering options, including wireless charging
  • Languages supported: English, Français, Italiano

Applications

  • Environmental noise
  • City noise
  • Environmental impact studies
  • Construction noise
  • Monitoring noisy venues

Noise Monitoring at Your Fingertips

The SoundExpert Model 821ENV in its basic form includes the essentials for measuring noise by providing:

  • A, C, and Z frequency weightings
  • F, S, and I time weightings
  • Full-featured data logging

Using the included G4 LD Utility software, data can be downloaded, visualized, manipulated, and exported to a variety of formats, including Microsoft Excel® .xlsx. For more advanced applications, options such as 1/1 or 1/3 octave filters for frequency analysis are available. When protection and extra power are needed for unattended outdoor noise measurements, choose from a variety of protective cases with batteries, solar power, and grid/mains power capabilities. SoundExpert Noise Monitoring System Model NMS048 is available as a complete outdoor noise monitoring kit. The SoundExpert Sound Level Meter Model 821ENV, together with Larson Davis quality and customer support, delivers a professional solution you can trust.

Key Specifications for SoundExpert Model 821ENV

Dynamic Range (A-weighted typical) 17 to 140 dB
Time Weightings Fast, Slow, & Impulse
Frequency Weightings A, C, & Z
Data Storage (micro SD card) 8 GB standard
Up to 256 GB
Data Logging Time history: 100 ms to 1 h
Measurement History: 1 min to 6 h
Metrics Leq, Lmax, Lmin, Lpeak, Ln (6 values), LDN, LDEN

Available Configurations

SoundExpert Sound Level Meter is available as a Class 1 or Class 2 device and with or without Octave Band Analysis.

SOUNDEXPERT SOUND LEVEL METERS
Model 721ENV 721ENV-D 821ENV 821ENV-D
Class 2 2 1 1
Time History Logging
Measurement History
Community Noise Metrics
OBA (1/1 and 1/3 Bands)    

Standards and Approvals for Series 821ENV

Acoustic ANSI S1.4-2014 Class 1
IEC 61672-1:2013 Class 1
Noise Dosimetry (Optional) ANSI S1.25-1991
IEC 61252:2017
Safety Directive 2014/35/EU
IEC 61010-1:2010
RoHS Directive 2011/65/EU
Approvals CE, RoHS, WEEE
LD-831C

Specific References

Download

Datasheet_821ENV

Datasheet_821ENV

Download (2.95M)