Larson Davis 831 Preconfigured Kits and Options
Standard 831 Kits
Popular preconfigured 831 kits for short term studies in controlled environments or for use with your own longer-term power and environmental protection.

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K831L |
Logging Analyzer Kit |
K831 |
Logging Analyzer Kit with 1/1 and 1/3 Octave |
K831H |
Logging Analyzer Kit with 1/1 and 1/3 Octave plus sound recording |
▼ Firmware Details
Firmware specifics for each kit
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K831L
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K831
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K831H
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831-LOG |
Logging of Time Histories
increments from 20ms to 24hr |
• |
• |
• |
831-ELA |
Measurement History
exceedance/event logging, intervals and daily histories |
• |
• |
• |
831-OB3 |
Selectable Real Time
1/1 and/or 1/3 octave filter set |
º |
• |
• |
831-IH |
Industrial Hygiene
2 selectable doses including OSHA, ACGIH, NIOSH, IEC standards |
• |
• |
• |
831-SR |
Sound Recording
level and dynamic based event recording and more |
º |
º |
• |
831-FST |
Fast Logging of Time Histories
adds 2.5, 5, 10ms speeds (requires LOG and OB3) |
º |
º |
º |
831-FFT |
FFT 400 to 6400
selectable span 100Hz-20kHz, windowing and control |
º |
º |
º |
831-RT |
Reverberation Time
room acoustics per ISO 3382-2:2008 and ASTM E2235-04 |
º |
º |
º |
• - Standard with Rental º - Optional Addition
▼ Included Accessories
Complete list of accessories included with each kit
377B02 |
1/2" freefield microphone (use built-in filter of 831 for random incidence response) |
PRM831 |
Preamplifier |
EXC010 |
Microphone extension cable, 10ft |
KBAT15 |
AA battery kit for short term use, with recharger |
PSA029 |
AC power adapter |
CBL138 |
USB cable to connect to AC adapter or computer |
WS001 |
3-1/2" windscreen |
Software |
Utility software for meter setup and data download |
Accessories |
Calibration data, Manual sets, computer interface accessories and an acoustic calibrator |
831 Kits for Unattended Monitoring
Complete noise monitoring 831 kits for unattended monitoring in a wide variety of environmental situations.

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NMS831L |
Outdoor Logging Noise Monitoring System |
NMS831 |
Outdoor Logging Noise Monitoring System with 1/1 and 1/3 Octave |
NMS831H |
Outdoor Logging Noise Monitoring System with 1/1 and 1/3 Octave plus sound recording |
▼ Firmware Details
Click to view the specific firmware included with each kit.
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|
NMS831L
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NMS831
|
NMS831H
|
831-LOG |
Logging of Time Histories
increments from 20ms to 24hr |
• |
• |
• |
831-ELA |
Measurement History
exceedance/event logging, intervals and daily histories |
• |
• |
• |
831-OB3 |
Selectable Real Time
1/1 and/or 1/3 octave filter set |
º |
• |
• |
831-IH |
Industrial Hygiene
2 selectable doses including OSHA, ACGIH, NIOSH, IEC standards |
• |
• |
• |
831-SR |
Sound Recording
level and dynamic based event recording and more |
º |
º |
• |
831-FST |
Fast Logging of Time Histories
adds 2.5, 5, 10ms speeds (requires LOG and OB3) |
º |
º |
º |
831-FFT |
FFT 400 to 6400
selectable span 100Hz-20kHz, windowing and control |
º |
º |
º |
831-RT |
Reverberation Time
room acoustics per ISO 3382-2:2008 and ASTM E2235-04 |
º |
º |
º |
• - Standard with Rental º - Optional Addition
▼ Included Accessories
Click to view the complete list of accessories included with each kit.
377B02 |
1/2" freefield microphone (use built-in filter of 831 for random incidence response) |
PRM831 |
Preamplifier |
TRP003 |
Support Tripod, maximum height 8ft, and mating adapter to EPS2106-2 |
EPS2106-2 |
Environmental Protection Kit, includes large windscreen, bird spikes, desiccant |
EPS030-831 |
Outdoor case, includes long term battery (to 7 days), charger and cabling |
EXC010 |
Microphone extension cable, 10ft |
KBAT15 |
AA battery kit for short term use, with recharger |
PSA029 |
AC power adapter |
CBL138 |
USB cable to connect to AC adapter or computer |
WS001 |
3-1/2" windscreen |
Software |
Utility software for meter setup and data download |
Accessories |
Calibration data, Manual sets, computer interface accessories and an acoustic calibrator |
For a list of Optional 831 Accessories click here.
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