Concerned about potentially dangerous levels of noise in the workplace? Spartan Sound Level Meters Series 821 from Larson Davis, designed for Occupational Health and Safety professionals, offers all the tools needed for workplace noise and noise exposure measurements, including built-in workplace noise dose metrics and selectable time and frequency weightings. Optional Octave Band Analysis feature (1/1 and 1/3 octave bands) provides data that can help with noise source identification and hearing protection selection. Included software provides noise reports over time, data visualization, and streamlined results reporting, plus the ability to export data to a variety formats.

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Highlights Easy-to-navigate, responsive touch display
Dust and moisture resistant with IP65 rating
Long battery life
Wireless charging
Automatic data transfer
Built-in noise dose metrics
Available as Class 1 or Class 2
Applications Walkaround Industrial Noise Measurements
Job-based Noise Measurements
Site Surveys
Plant Sound Maps
Noise Dose Measurements
Key Specifications for Spartan Model 821IH
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: 1s to 1h
Measurement History: 1min to 6h
Metrics Leq, Lmax, Lmin, Lpeak, Ln (6 values)

Available Configurations

Spartan 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 721IH 721IH-D 821IH 821IH-D
Class 2 2 1 1
Time History Logging
Measurement History
OBA (1/1 and 1/3 Bands)    
Standards and Approvals for Series 821IH
Acoustic ANSI S1.4-2014 Class 1
IEC 61672-1:2013 Class 1
Noise Dosimetry 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

See the configuration guide for all accessories.