Want a sound level meter that works like your phone? The SoundExpert Model 821 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 821 is an excellent choice for ease of use and low power operation.Request Pricing
|Highlights||Large, responsive touch display|
|Long battery life – up to 40 hours|
|IP65 rated against dust and moisture|
|Automatic data download via Bluetooth or USB options|
|Flexible powering options, including wireless charging|
|Class 1 and Class 2 models available|
|Environmental impact studies|
|Monitoring noisy venues|
The SoundExpert Model 821 in its basic form includes the essentials for measuring noise by providing:
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.
The SoundExpert Sound Level Meter Model 821 together with Larson Davis quality and customer support delivers a professional solution you can trust.
|Specifications for model 821ENV|
|Dynamic Range (A-weighted typical)||14 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|
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|
|Time History Logging|
|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
RoHS Directive 2011/65/EU
|Approvals||CE, RoHS, WEEE|
See the configuration guide for all accessories.
|SoundExpert Data Sheet|
|SoundExpert Configuration Guide|
|Sound Meter Selection Guide|
|Noise Monitor Selection Guide|
|Larson Davis Page|
|G4 Ld Utility Software|
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Thank-you for your interest, we will be in touch!