Larson Davis Model 831 SLM (Sound Level Meter)
An extremely versatile Class 1 Sound Level Meter which performs the functions of several instruments.
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Specification
- IEC 61672-1:2013, ANSI S1.4-2014 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 support
- Back erase functionality
- Normalized spectrum
- User-selectable screen layout and lockable set-up protection
- Remote access and field upgradable
- Wide variety of non-proprietary powering options including – 4xAA internal batteries, AC, USB and external batteries