Spartan Series 821

Short description

Occupational Noise Assessment

Concerned about potentially dangerous levels of noise in the workplace? Spartan Sound Level Meters Series 821IH 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 of formats.

Larson Davis
Series 821


Product Details

Spartan Sound Level Meter is available as a Class 1 (Model 821IH) or Class 2 (Model 721IH) device. See Configurations or download the datasheet for more details.


  • Easy-to-navigate, responsive touch display
  • Long battery life
  • Wireless charging
  • Automatic data transfer
  • Built-in noise dose metrics
  • Languages supported: English, Français, Italiano, Português, Español


  • 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) | 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: 1 s to 1 h
Measurement History: 1 min to 6 h
Metrics | Leq, Lmax, Lmin, Lpeak, Ln (6 values)