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| Model Number | Description | |
|---|---|---|
| Sound Level Meter | ||
| 831C-FF | SoundAdvisor Model 831C sound level meter with Class-1 free-field, pre-polarized precision condenser microphone (50 mV/pa), preamplifier (PRM831), accessory kit (831C-ACC) | |
| 831C-FF-KIT1 | 831C-FF with DVX012 and firmware options 831C-LOG, 831C-OB3, 831C-ELA & 831C-SR | |
| 831C-FF-KIT2 | SoundAdvisor Model 831C-FF with firmware options 831C-LOG & 831C-OB3 | |
| 831C-RI | SoundAdvisor Model 831C sound level meter with Class-1 random-incidence pre-polarized condenser microphone (50 mV/Pa), preamplifier (PRM831), accessory kit (831C-ACC) | |
| 831C-RI-KIT1 | SoundAdvisor Model 831C-RI with DVX012 and firmware options 831C-LOG, 831C-OB3, 831C-ELA & 831C-SR | |
| 831C-LOWN | SoundAdvisor Model 831C sound level meter with 378A04 low noise, ICP® microphone and preamplifier (450 mV/Pa), accessory kit (831C-ACC) and ICP adapter (ADP074) | |
| 831C-ENV | SoundAdvisor Model 831C class 1 sound level meter base kit for environmental noise. Includes EPS2116, PRM2103-FF, CBL203-20 & PSA032 and firmware options 831C-LOG, 831C-OB3, 831C-ELA, 831C-SR & 831C-SW | |
| 831C | SoundAdvisor Model 831C sound level meter for environmental and community noise without microphone or preamplifier | |
| Firmware Options | ||
| 831C-LOG | Upgrade Model 831C sound level meter with logging of time histories with periods from 20 ms to 24 hr | |
| 831C-OB3 | Upgrade Model 831C sound level meter with Real-time 1/1 & 1/3 octave filter set | |
| 831C-ELA | Upgrade Model 831C sound level meter with event, interval and daily histories logging | |
| 831C-SR | Upgrade Model 831C to record compressed and uncompressed audio | |
| 831C-MSR | Upgrade Model 831C to add Measurement History and sound recording | |
| 831C-SW | Upgrade Model 831C to add direct USB communication with Sierra Wireless RV50 gateway | |
| 831C-FFT | Upgrade Model 831C to add FFT Analysis and tonal assessment | |
| 831C-RA | Upgrade Model 831C to add Room Acoustic measurement capability | |
| 831C-SCH | Upgrade Model 831C to add scheduling for measurements, communication options, and alert levels | |
| Calibration | ||
| CER-831 | ISO 17025 compliant calibration and certification of 831C (SLM, preamplifier with microphone) and 831C-RPT | |
| CER-831-E | Environmental certification Model 831C for [-40,+158] °F ([-40,+70] °C) range. Includes calibration of 831C and PRM831, 831-RPT, environmental test of microphone. Microphone calibration not included. | |
| CER-MIC | Calibration and certification for microphone | |
| CER-PRM2103-E | Environmental Certification Model PRM2103 for [-40,+158] °F ([-40,+70] °C) range; (no microphone certification); environmental test of microphone | |
| 831-RPT | Model 831C Sound Level Meter certification test report. Certificate for SLM, preamplifier, and microphone. | |
| Accessories | ||
| 831C-ACC | Accessory kit for Model 831C sound level meter, which includes case (831-CCS), batteries (4-AA), power supply w/ USB cable (PSA029), WiFi dongle (DVX014), and windscreen (WS001) | |
| 831-CCS | Hard shell case with rugged foam lining | |
| 831-MEM32G | USB memory, 32GB | |
| ADP074 | Adapter to provide ICP output on BNC connector | |
| ADP097 | Direct input adapter with BNC connector for Model 831C & 831 sound level meters | |
| BAT015 | 8 D cell battery holder with fuse; batteries not included | |
| CBL138 | Cable USB A to mini-B 6 ft (1.8 m) | |
| CBL139 | AC/DC output cable with 2.5 mm sub-miniature plug to BNC or RCA | |
| CBL140 | DC power cable for Model 831 Sound Level Meter, 10 - 25 VDC includes lead-acid battery clamps and 12 V car plug | |
| CBL170 | Cable connecting Model 831 to 9-pin D connector (wind speed, direction, logic I/O, 3 slow ADC) and coaxial DC connector (to PSA027) | |
| DVX018 | USB Adaptor to serial (DB9 connector) | |
| DVX012 | USB to Ethernet adapter | |
| DVX013 | Gigabit Ethernet dongle for 831C with USB-A connector to RJ-45 (CAT5) and includes 3 port USB hub. Hub requires external 5V power, AC adapter included (StarTech model ST3300GU3B). For DC power use PSA036 | |
| DVX014 | WiFi adapter supporting b/g/n for 831C (D-Link DWA-121) | |
| DVX015 | USB self-powered 2 port hub (Cables To Go model #29525) | |
| EXC006/10/20/50 | Microphone extension cable, 5 pin Switchcraft, 6 ft (2 m), 10 ft (3 m), 20 ft (6 m), 50 ft (15 m). Additional lengths available | |
| GPS002 | USB connected GPS receiver | |
| PSA029 | AC Power supply (100-240 VAC to 5 V USB w/mini-B cable, CBL138) | |
| PSA036 | 12V to 5V DC power adapter for use with DVX013 | |
| SEN025 | Single axis accelerometer, 10 mV/(m/s2) or 100 mV/g ICP. | |
| WS001 | 3.5 inch diameter windscreen for 0.5 inch microphone | |
| Microphones and Preamplifiers | ||
| 377B02 | 0.5inch free-field, prepolarized condenser microphone, typical sensitivity = 50 mV/Pa, 3.15 Hz to 20 kHz (±2 dB) | |
| 377C20 | 0.5 inch random incidence, prepolarized condenser microphone 50 mV/Pa, 3.15 Hz to 16 kHz (±2 dB) | |
| 377C10 | 0.25 inch pressure, prepolarized condenser microphone typical sensitivity = 1.6 mV/Pa, 4 Hz to 70 kHz (±2 dB) | |
| 378A04 | ICPr Low noise microphone & preamplifier system, 6.5 dB A-weighted typical noise | |
| ADP043 | 0.25 inch microphone to 0.5 inch preamplifier adaptor | |
| PRM831 | Model 831C Sound Level Meter preamplifier for 0.5 in free-field or random incidence prepolarized microphones | |
| PRM2103-FF | Permanent Outdoor Preamplifier with free-field microphone with Remote Calibration Check, humidity reading and heater, for pre-polarized microphone. Random or 90 degree response can be selected on the Model 831C. | |
| Software | ||
| SWW-SLM-UTILG4 | G4 LD Utility software for SoundTrack® LxT and Model 831C sound level meter: download, upgrade, translate, print text reports or export to spreadsheet. CD with Quick Start Guide | |
| SWW-DNA | Basic software and dongle (USB) for evaluation and reporting of data downloaded from the Larson Davis instruments, requires an instrument driver | |
| SWW-DNA-831 | Instrument driver for instrument control, set-up, live display, data translation, and data download for Model 831C & 831 sound level meter | |
| SWW-DNA-EV | DNA option for Events tracking: PNL and PNLT Event Time History and EPNL Event | |
| SWW-DNA-BA | DNA software Building Acoustics, allows calculation of transmission loss and sound insulation calculations | |
| SWW‑DNA‑REMOTE | DNA software for monitoring a remote location when using 820, 824, 870, or 831C Models. Uses modem connection for communication and data download. | |
| Calibrators | ||
| CAL200 | Class 1 acoustic calibrator with user selectable output of 94 or 114 dB at 1 kHz. 1/2 inch opening (no adaptor) | |
| CAL250 | Class 1 microphone calibrator, output 114 dB at 251.2 Hz. 1 inch opening with 1/2 inch (ADP019) adaptor. 3/8 inch (ADP020) and 1/4 inch (ADP021) adaptors available | |
| Noise Monitoring System Components | ||
| COM-RV50-DC-E/U | Sierra Wireless Model RV50 cellular gateway to add Internet connectivity through cellular network to 831C. Choose /U for US and /E for rest of world. Requires option (831C-SW for direct USB connection). | |
| EPS030-831 | Case for Model 831C Sound Level Meter including (1) 21 Ah battery, charger (PSA032), internal preamplifier cable (CBL141), and power distribution cable (CBL151) | |
| EPS036-831 | Case on wheels (CCS035) to enclose Model 831C with (2)x 21 Ah batteries (BAT011). Includes CBL166 & CBL168 to power Model 831C | |
| EPS037-831 | Case on wheels (CCS035) to enclose Model 831C with 100 Ah batteries (BAT012). Includes CBL166 & CBL168 to power Model 831C | |
| EPS042 | Environmental protection for 831C, 831 or LxT with BAT015 in a CCS002 hard case; includes a cable gland | |
| EPS044 | Noise monitor enclosure for 831C including CCS051, CCS052, ACC009, PSA038, CBL224-02, CBL225-01, CBL226-02 & CBL228-03 | |
| EPS044-SLA | Noise monitor enclosure for 831C including CCS051, CCS052, BAT020 35 Ah SLA battery, ACC009, PSA038, CBL224-02, CBL225-01, CBL226-02 & CBL228-03 | |
| EPS044-LFP | Noise monitor enclosure for 831C including CCS051, CCS052, BAT019 45 Ah LiFePo battery, ACC009, PSA038, CBL224-02, CBL225-01, CBL226-02 & CBL228-03. License required to ship battery | |
| EPS2116 | Environmental protection for 1/2 inch preamplifiers with windscreen, bird spikes, desiccants, and universal mounting | |
| SEN031 | Combined weather sensor: wind speed and direction (no moving parts), temperature, humidity, pressure, rainfall (requires CBL167 cable + DVX008A) | |
| TRP001 | Instrumentation tripod with ADP032 preamplifier to tripod interface | |
| TRP003 | Support tripod, maximum height 8 ft (2.4 m) used in portable NMS systems | |
| CBL174 | Waterproof cable connecting EPS030-831 to external PC, 2 m USB A-to-B | |
| ACC009 | Monopole for use in EPS044 and NMS044 systems | |
| BAT019 | 45 Ah 12V LiFePo battery. Weighs 12.8 pounds (5.8 kg) | |
| BAT020 | 35 Ah 12V SLA battery. Weighs 24.7 pounds (11.2 kg) | |
| CBL218 | Cable, USB-A to micro-B, 3 ft (1 m) | |
| CBL222-08 | Cable connecting 831C or 831 to PRM2103 with Anderson Powerpole® connectors for 12V power. (8 ft / 2.4 m) | |
| CBL222-20 | Cable connecting 831C or 831 to PRM2103 with Anderson Powerpole connectors for 12V power. (20 ft / 6 m) | |
| CBL223-02 | Power cable for Sierra Wireless with sense line and Anderson Powerpole connectors for 12V power (2 ft / 0.6 m) | |
| CBL224-02 | Power cable for 831C or 831 with Anderson Powerpole connectors for 12V power (2 ft / 0.6 m) | |
| CBL225-01 | Power cable for battery with spade connectors and Anderson Powerpole connectors for 12V power (1 ft / 0.3 m) | |
| CBL226-02 | Power cable with Anderson Powerpole connectors to bare wires (2 ft / 0.6 m) | |
| CBL228-03 | Cable, 1m, with MC-4 connectors for solar and bare wires for use with solar charge controllers | |
| CCS051 | Base enclosure for EPS044 and NMS044 systems that includes mounting plate, glands and mount for ACC009 | |
| CCS052 | Canvas bag with zipper and handles. 19 x 9 x 6 in (48 x 23 x 15 cm) | |
| COM-ANT-GPS | GPS antenna with SMA connector and cable for use Sierra Wireless modem like RV-50 | |
| SLP001 | Portable folding 60 Watt solar panel with integrated stand and carrying case | |
| SLP002 | Portable folding 100 Watt solar panel with integrated stand and carrying case | |
| PSA038 | Solar charge controller, 10A, used in EPS044 and NMS044 configurations | |
| PSA039 | AC power supply, 15 V, 90 W, with MC4 connectors for use with EPS044 & NMS044 | |
| PSA040 | SLA Battery Charger with PowerPole output connectors. Input: 100-240VAC, 50-60Hz, 0.80-035A. Output: 14.7VDC, 2.25A | |
| Noise Monitoring System Components | ||
| NMS044‑LFP100‑E | Complete NMS for use outside US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-LFP, COM-RV50-DC-E, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day | |
| NMS044‑LFP100‑U | Complete NMS for use in US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-LFP, COM-RV50-DC-U, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day | |
| NMS044‑SLA100‑E | Complete NMS for use outside US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-SLA, COM-RV50-DC-E, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day | |
| NMS044‑LFP100‑U | Complete NMS for use in US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-LFP, COM-RV50-DC-U, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day | |