AWA5920 Wearable Personal Noise Dosimeter
The AWA5920 is a compact wearable noise dosimeter designed for professional occupational and personal noise exposure assessment.
Worn directly by the worker, the AWA5920 measures noise exposure throughout a shift and calculates key parameters including TWA, LEX,8h, LAVG, Dose, SEL and Leq. It also provides statistical analysis, data logging and audio recording, with optional 1/1 and 1/3 octave analysis for more detailed investigation of workplace noise.
With up to 64 GB storage, more than 41 hours battery life and IP65 protection, the AWA5920 is suited to occupational hygienists, health and safety professionals and organisations carrying out workplace noise exposure surveys.
Key Features
- IEC 61252:2025 personal noise dosimeter
- IEC 61672-1:2013 Class 2 sound level meter performance
- IEC 61260-1:2014 Class 2 octave filters
- Measures TWA, LEX,8h, LAVG, Dose and sound exposure
- Leq, Peak and statistical Ln measurements
- 51–142 dBA measurement range
- Up to 145 dBC Peak
- A, C and Z frequency weighting
- Fast, Slow and Impulse time weighting
- Statistical noise analysis
- Data logging / time history
- 64 GB data storage
- High-quality WAV audio recording
- Optional 1/1 octave analysis
- Optional 1/3 octave analysis
- Multiple measurement modules can operate simultaneously
- 1.3" 240 × 240 TFT display
- USB Type-C charging and data transfer
- Optional Bluetooth and 4G
- IP65 dust and water resistance
- More than 41 hours continuous operation
- Compact 119 g wearable design
Choose Your AWA5920 Configuration
| Configuration | Best For | Main Capability |
|---|---|---|
| Option 1 – Single Kit | Standard personal and occupational noise exposure surveys | TWA/Dose • Leq/Peak • Statistical Ln • Logging • Recording |
| Option 2 – Single Kit + Octave Analysis | Detailed individual exposure and frequency investigation | Standard functions + 1/1 & 1/3 Octave |
| Option 3 – 5-Pack | Monitoring multiple workers during the same survey | Five-dosimeter professional monitoring package |
| Option 4 – 5-Pack + Class 2 Calibrator | Multi-worker surveys with field calibration capability | Five-dosimeter package + Class 2 acoustic calibrator |
| Option 5 – 5-Pack + Octave Analysis + Calibrator | Advanced multi-worker occupational noise surveys | Five dosimeters + 1/1 & 1/3 Octave + Class 2 calibrator |
These five configurations correspond directly to the packages in Aihua's current 2026 price list. All include Leq/Peak, Ln statistics, TWA/Dose, logging, storage and recording; octave analysis is included in Options 2 and 5, while a sound calibrator is included in Options 4 and 5.
Option 1 – Single Kit
The standard choice for individual workplace noise exposure measurement.
The worker wears the compact AWA5920 throughout the measurement period while the instrument continuously records and calculates occupational noise exposure.
Measurements include:
- TWA
- LEX,8h
- LAVG
- Noise Dose
- Personal sound exposure
- Leq
- Peak levels
- Statistical Ln values
- Data logging
- Audio recording
Ideal for routine occupational hygiene and workplace noise surveys.
Option 2 – Single Kit + Octave Analysis
Adds real-time 1/1 and 1/3 octave frequency analysis to the standard dosimeter functions.
This is useful where it is not enough to establish how much noise a worker is exposed to — you also need to determine which frequencies are responsible for that exposure.
Ideal for:
- Engineering noise control
- Hearing-protection investigations
- Machinery noise
- Noise-source identification
- Detailed occupational hygiene surveys
Option 3 – 5-Pack
Designed for surveys where multiple employees or work positions need to be monitored simultaneously.
A five-dosimeter system allows exposure measurements to be collected from multiple workers during the same shift, making it particularly useful for larger occupational hygiene programmes.
Option 4 – 5-Pack + Class 2 Calibrator
Adds a Class 2 acoustic calibrator to the multi-instrument system, allowing the dosimeters to be field checked before and after measurements.
The supplier's five-pack calibrator kit includes five AWA5920 dosimeters, one sound calibrator and a five-unit charging dock with power supply.
Option 5 – 5-Pack + Octave Analysis + Calibrator
The most comprehensive AWA5920 package.
It combines:
- Five wearable dosimeters
- Leq / Peak and statistical analysis
- TWA / Dose measurement
- Data logging
- Audio recording
- 1/1 octave analysis
- 1/3 octave analysis
- Class 2 sound calibrator
Ideal for professional occupational hygiene teams carrying out advanced multi-worker exposure surveys.
Occupational Noise Measurement
The AWA5920 measures the key parameters required for personal noise exposure assessment.
| Parameter | Measurement |
| TWA | Time-weighted average sound pressure level |
| LEX,8h | 8-hour equivalent sound pressure level |
| LAVG | Average sound pressure level |
| DOSE | Noise dose percentage |
| E | Personal sound exposure |
| SEL | Sound Exposure Level |
| Leq,T | Equivalent continuous sound level |
| Lpeak | Peak sound pressure level |
| Ln | Statistical percentile noise levels |
Exchange rate can be selected from 2, 3, 4, 5 or 6, with selectable threshold levels from 40–90 dB and criterion levels from 70–90 dB.
Octave Analysis
Optional Class 2 frequency analysis provides both:
1/1 Octave
Nine bands from:
31.5 Hz to 8 kHz
1/3 Octave
Detailed frequency analysis from:
20 Hz to 12.5 kHz
Both modes provide real-time Lp, Lmax, Lmin and Leq,T measurements with simultaneous A, C and Z weighted analysis.
Data Logging & Audio Recording
The AWA5920 includes 64 GB storage and can save measurement results for later PC analysis.
Audio recording is stored in WAV format with selectable recording quality up to 48 kHz / 32 bit, allowing recorded noise events to be reviewed after the survey.
Measurement data can be transferred directly to a computer using the USB Type-C interface.
Optional Accessories & Add-ons
| Accessory / Option | Purpose |
| AWA6022A Class 2 Sound Calibrator | Field calibration and verification |
| 1/1 Octave Analysis | Real-time octave frequency analysis |
| 1/3 Octave Analysis | Detailed real-time frequency analysis |
| 5-Unit Charging Dock | Simultaneous charging for multi-dosimeter systems |
| USB Type-C Cable | Charging and measurement-data transfer |
| Bluetooth Module | Optional wireless communication |
| 4G Module | Optional mobile data communication |
| Replacement Windscreen | Reduces wind influence on measurements |
| Carrying Case | Instrument protection and transport |
Standard Single Kit
The standard single-instrument package includes:
- AWA5920 noise dosimeter
- Charger
- USB cable
- Carrying case
Technical Specifications
| Specification | Details |
| Instrument Type | Personal / Occupational Noise Dosimeter |
| Dosimeter Standard | IEC 61252:2025 |
| Sound Level Standard | IEC 61672-1:2013 Class 2 |
| Octave Filter Standard | IEC 61260-1:2014 Class 2 |
| A-Weighted Measurement Range | 51–142 dBA |
| C-Weighted Measurement Range | 51–142 dBC |
| Z-Weighted Measurement Range | 56–142 dBZ |
| C-Weighted Peak Range | 68–145 dBC |
| Frequency Range | 20 Hz–12.5 kHz |
| Sound Exposure Range | 0.01–999.99 Pa²h |
| Noise Dose Range | 0–99,999% |
| Frequency Weighting | A, C, Z |
| Time Weighting | F, S, I |
| A/D Resolution | 24 bit |
| Sampling Frequency | 48 kHz |
| Display | 1.3" TFT-LCD, 240 × 240 |
| Storage | 64 GB |
| Interface | USB Type-C |
| Wireless Communication | Optional 4G and Bluetooth |
| Battery | 3.7 V, 2000 mAh lithium |
| Battery Life | More than 41 hours under specified conditions |
| Charging Time | Approx. 8 hours |
| Measurement Duration | 1 second to 99 hours |
| Protection Rating | IP65 |
| Dimensions | 90 × 49 × 64 mm |
| Weight | Approx. 119 g |
| Operating Temperature | -10°C to +40°C |
| Operating Humidity | 20–90% RH |
| Atmospheric Pressure | 65–108 kPa |
The measurement ranges, battery, environmental limits and physical specifications above are taken from the current June 2026 manual.
Typical Applications
- Occupational noise exposure assessment
- Personal noise dosimetry
- Full-shift workplace noise monitoring
- Industrial hygiene
- Health and safety surveys
- Hearing conservation programmes
- Manufacturing environments
- Construction sites
- Machinery and equipment noise
- Mining and heavy industry
- Transport and vehicle noise
- Impulse noise assessment
- Multi-worker exposure surveys
- Engineering noise-control investigations