| Highlights | - Features the Model 831 sound level meter
- Utilizes the 831-INT(-ET) docking station for a compact interface to all accessories
- Outdoor microphone options including remote sensing and remote calibration
- Ethernet and cellular communication options
- Removable data storage devices
- Weather sensors interface
- Powered USB hub for communication, weather, and GPS
- AC, battery, or solar power options
- Fully supported by the 831 software development kit (SDK) for system integrators and consultants
- Live audio streaming available
- Permanent tilt-down poles and heavy duty tripods available
- Temperature range -40 to 70 C (-40 t0 158 F)
- Service and maintenance contract options
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|  An Integrated Hardware & Software System with Digital Communication and an Open Interface for Long Term
Noise Monitoring Applications |
| Applications | - Airport and Traffic Noise Monitoring
- Industrial, Construction, and Community
Noise Monitoring - Urban or City Noise Monitoring
- Motorsport Noise Monitoring
- Environmental Noise Studies
| | Options | - 831-INT(-ET)
- Outdoor Microphones: 426A12, PRM2103-FF
- EPS2116 Outdoor Protection
- Weather Sensor: SEN031
- Outdoor Enclosures
- Poles and Tripods
- Calibrator
- Software
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Alpha PID Sensors