Larson Davis / Noise & Vibration Instrumentation

Noise doesn't stop at the property line.

Noise Monitoring Systems — Class 1 precision instrumentation for regulatory noise assessment, occupational dosimetry, and long-term environmental monitoring. Accuracy and reliability demanded by OSHA, EPA, and international standards.

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Certified Standards
IEC 61672 Class 1
ANSI S1.4 Type 1
OSHA 29 CFR 1910.95
EPA Guidelines
EU Directive 2003/10/EC

Deployment Environments

Where sound becomes data.

01

Construction Sites

24/7 boundary noise monitoring against permit conditions. Automated alerts when levels approach limits — before a complaint lands on a regulator's desk. Timestamped evidence that construction activity remained compliant throughout the project lifecycle.

Permanent station Auto-alerts Permit compliance

Best fit

Outdoor Monitoring
Station

02

Airports

Flight path noise contours, community noise exposure mapping, and DNL metric calculation for Part 150 studies. Multi-station networks synchronized to flight track data for scientifically defensible noise impact assessments around airport perimeters.

DNL / Ldn metrics Multi-station network Part 150

Best fit

Outdoor Monitoring
Station Network

03

Highways & Roads

Traffic noise assessment for EIA reports, barrier effectiveness studies before and after installation, and continuous monitoring for long-term trends. Correlate noise levels with traffic counts for predictive modelling per FHWA guidance.

EIA reporting FHWA guidance Barrier studies

Best fit

Class 1 Sound
Level Meter

04

Wind Farms

Environmental impact compliance monitoring during construction and post-commissioning operational phases. Amplitude modulation analysis, low-frequency noise, and infrasound characterization per IEC 61400-11 for turbine noise measurement.

IEC 61400-11 Infrasound AM analysis

Best fit

Outdoor Station
+ SLM Pair

05

Industrial Facilities

Perimeter noise monitoring for neighbor complaint management and regulatory proof of compliance. Simultaneous occupational dosimetry inside the plant and environmental monitoring at the fence line — one system, full picture.

Perimeter fence Neighbor complaints OSHA + EPA dual

Best fit

Station + Dosimeter
Combined Program

06

Entertainment Venues

Real-time noise limit monitoring at concerts, outdoor festivals, and stadiums. Audience hearing safety per WHO guidelines, neighbour compliance, and venue operator liability protection — simultaneously, from the same instrument.

Real-time limits Crowd safety WHO guidelines

Best fit

Class 1 Sound
Level Meter

Choose Your Approach

Permanent monitoring or portable measurement?

Outdoor Stations

Permanent
Monitoring

Deployment Fixed weatherproof mast, pole-mount or building-mount. IP66-rated enclosure.
Power Solar panel + sealed battery backup. Fully self-sufficient for remote sites.
Connectivity 4G/LTE cellular, Wi-Fi, Ethernet. Real-time cloud dashboard + email/SMS alerts.
Data Access Browser-based portal. API access for integration with project management tools.
Typical Use Construction sites, airports, industrial perimeters, wind farms. Months to years of continuous operation.
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SLMs & Dosimeters

Portable
Measurement

Deployment Handheld or wearable (dosimeter). Carried to the measurement point — no infrastructure.
Power AA batteries or rechargeable Li-ion. Full-shift operation on a single charge.
Connectivity USB, Bluetooth, NFC (dosimeters). Download and report after measurement session.
Data Access Companion software for octave analysis, Ln statistics, and automated compliance reports.
Typical Use Occupational surveys, spot checks, building acoustics, episodic assessments. Hours to days.
Get SLM Quote Get Dosimeter Quote

Compliance Value

Meet the standard.
Prove it.

Measure it. Log it. Prove it. Three words that drive every Larson Davis instrument design decision.

Occupational

Personal noise dosimetry and area monitoring for worker hearing conservation programs. Defensible exposure records every shift, every worker.

  • OSHA 29 CFR 1910.95 — TWA 90 dBA / AL 85 dBA
  • MSHA 30 CFR Part 62
  • EU Directive 2003/10/EC — ELV/EAV
  • IEC 61252 — Dosimeter standard
  • Hearing conservation program records

Environmental

EPA-compliant community noise assessment, construction permit monitoring, and long-term environmental noise management with auditable data trails.

  • EPA 40 CFR Parts 201–211
  • ISO 1996 — Community noise assessment
  • IEC 61672 Class 1 — Measurement accuracy
  • Local construction permit compliance
  • WHO Environmental Noise Guidelines

Building Acoustics

STC and IIC field testing, HVAC noise compliance, and room acoustics measurement per ASTM and ISO building acoustic standards.

  • ASTM E336 / E966 — Field STC testing
  • ASTM E1007 — Impact insulation (IIC)
  • ISO 16032 — HVAC noise in buildings
  • ANSI / ASA S12.60 — Classroom acoustics
  • ISO 3382 — Room acoustics / RT60

Technical Specifications

Quick Comparison

Parameter SLM Sound Level Meters Get Quote → DOS Dosimeters Get Quote → OMS Monitoring Stations Get Quote →
Standards IEC 61672 Class 1 IEC 61252, ANSI S1.25 IEC 61672 Class 1
Measurement Range 20–140 dB single range 70–140 dB 20–140 dB
Frequency Weighting A, C, Z A, C A, C, Z
Analysis 1/1, 1/3 octave, FFT Leq, Lavg, TWA, dose % 1/1, 1/3 octave, Ln stats
Data Storage Internal + SD card Internal flash Internal + cloud
Power AA batteries / USB Rechargeable Li-ion Solar + battery backup
Connectivity USB, Bluetooth USB, NFC Cellular, WiFi, Ethernet

* Specifications vary by model. Contact us for model-specific datasheets.

Site Assessment

Every site is different. Let’s design yours.

Custom deployment planning, regulatory expertise, sensor selection, and cloud integration — from a single conversation with our acoustic engineers.

Schedule a Site Assessment +971 4 392 5510