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When your goal is measuring environmental noise, it is crucial
to have a system designed to meet the specific goals of your test. Have you ever lost your measurement notes, or worse, forgotten to log the information properly and then had to either go back and reacquire the data altogether or simply not report
it? Portable and permanent testing solutions from Larson Davis brings you the meters you trust in the rugged packaging you need to help you capture the data essential to your test. In addition to information on individual systems, an Outdoor System Comparison Table is available below.
SoundAdvisor™ Model NMS045
Model NMS045 delivers 24/7 connectivity, continuous power capabilities, and a rugged design to simplify your long-term testing. Encased in a fiberglass enclosure, NMS045 is mounted to a permanently placed pole.
SoundAdvisor™ Model NMS044
Model NMS044, similar to Model NMS045, is a completely wireless solution designed to run indefinitely on solar power, allowing you to take measurements and view them 24/7. A rugged case houses the system making it an ideal solution for remote noise monitoring.
SoundExpert™ Model NMS048
SoundExpert Noise Monitoring System Model NMS048 offers basic functionality for short-term monitoring. Deploy the system and operate on battery power for up to two weeks (or longer via solar or line power) before retrieving and downloading measurement data. The system does not offer 24/7 access to measurements or real-time alerts.
SoundAdvisor™ Model 831C
Model 831C delivers connectivity, extensive software features, and small form factor, making it ideal for handheld operation. Control and monitor data via any PC or mobile device with a standard web interface. Includes options for sound recording, exceedance alerts, fft analysis, and more.
SoundExpert™ Model 821ENV
SoundExpert Sound Level Meter Model 821ENV offers basic functionality for handheld noise level measurements. With a large, responsive touch display and IP65 rating against dust and water, the meter is ideal for handheld operation and short-term measurements.
| Model | Recording Duration | Power | Connectivity | Alerts |
|---|---|---|---|---|
| NMS045 | Long-term | AC or Solar | 24/7 Network Access | ✓ |
| NMS044 | Short- to Mid-term | Solar | 24/7 Network Access | ✓ |
| NMS048 | Short-term | AC, Solar, 8 D-cell batteries, or SLA battery | USB | |
| 831C | Handheld & Attended | Rechargeable Battery | 24/7 Network Access | ✓ |
| SoundExpert | Handheld & Attended | Primary AA Cells | USB or Bluetooth |