The Casella dBadge2 Personal Noise Exposure Meter is a shoulder-worn solution for workplace noise exposure measurement. It is designed for personal occupational noise monitoring and supports simultaneous measurement of workplace noise parameters, extended data storage and practical shift-based monitoring.
A sound level meter can tell you how loud a location or activity is at the time of measurement. But a worker may spend the day moving between machines, production lines, loading areas, maintenance tasks and quieter zones.
If monitoring focuses only on a machine or fixed area, it may not show the worker's complete accumulated exposure. Personal noise dosimetry follows the wearer through the work pattern, helping the safety team evaluate what that person experiences over the monitoring period.
This is particularly useful when employees do not remain beside one fixed noise source. A personal noise dosimeter can capture exposure throughout changing tasks and work areas, providing data that can be reviewed alongside the worker's actual shift activities.
One of the most common monitoring mistakes is to focus only on the loudest machine or a short spot measurement. Personal occupational noise exposure can change throughout the day as tasks, locations and operating conditions change.
A worker may experience moderate noise for long periods, short high-level events or several different noisy activities in one shift. Personal dosimetry helps bring these periods together into an exposure record that can support a more informed workplace noise assessment.
A personal noise dosimeter is worn by the employee during the monitored work period. The microphone is positioned near the wearer's hearing zone so that the instrument can record changing sound exposure as the person moves through different tasks and locations.
The dBadge2 measures workplace noise parameters simultaneously and stores profile data for later review. Depending on the monitoring configuration and assessment method, the resulting data can be used to evaluate metrics such as exposure, dose, average sound levels and peak events.
Follow workers who move between different equipment, processes and work areas instead of relying only on measurements taken at one fixed position.
Collect exposure data across a representative monitoring period so that short and long-duration noise events can be considered together.
Use stored measurement data to understand when exposure occurred and relate significant periods back to workplace activities.
The Casella dBadge2 is a shoulder-worn personal noise exposure meter designed for occupational noise measurements. Its compact form, long runtime, internal data storage and workplace protection make it suitable for practical monitoring during normal work activities.
| dBadge2 capability | What it means in practice | Why it matters |
|---|---|---|
| Shoulder-worn design | Compact body-worn measurement without a separate handheld meter | Allows the instrument to follow the worker through changing activities |
| Simultaneous noise parameter measurement | Captures multiple workplace noise parameters in one monitoring run | Reduces the need to repeat the shift simply to collect a different parameter |
| Up to 300 hours of run-data storage | Stores 1-second profile data internally | Provides detailed information for later exposure review |
| Typically 35-hour broadband runtime | Designed to support extended workplace monitoring periods | Useful where monitoring programmes include long or repeated shifts |
| IP65 protection | Protected for use in demanding workplace environments | Supports practical deployment in industrial settings |
| Event audio recording | Supports recorded audio associated with significant events | Can provide additional context when reviewing unusual noise periods |
The dBadge2 has a 55.0–140.3 dB(A) RMS linear operating range, a 90.0–143.3 dB peak measurement range with C or Z weighting, A/C/Z frequency weightings and Fast, Slow and Impulse time weightings. It weighs 117 g and carries an IP65 environmental rating.
For complete product specifications, visit our Casella dBadge2 product page.
A personal noise dosimeter and a sound level meter answer different questions. A dosimeter is particularly useful for determining what a moving worker experiences over time, while a sound level meter is useful for measuring and analysing noise at a selected location, machine or activity.
| Monitoring question | Personal noise dosimeter | Sound level meter |
|---|---|---|
| What does it follow? | The individual worker | A location, machine, activity or sound source |
| Best suited to | Workers with changing tasks, work areas or exposure patterns | Spot measurements, source investigation and detailed environmental or occupational sound analysis |
| Main question answered | How much noise exposure did this worker receive? | How loud is the sound at this location or activity? |
| Scienzo example | Casella dBadge2 | Casella CEL-630 |
Personal dosimetry can identify which workers or shifts have significant exposure, while a sound level meter can help investigate specific machines, processes and work zones in greater detail.
If you are unsure which approach fits your monitoring objective, our team can help you review the personal noise exposure meter and sound level meter options available.
Do not begin simply with whoever is available on the day of monitoring. Priority should normally be given to workers whose noise exposure changes significantly during the shift or whose work pattern cannot be represented well by a single fixed measurement.
Typical groups to consider include:
The selected wearer should represent the exposure scenario being assessed. Where several jobs, shifts or exposure groups have different work patterns, the monitoring plan should reflect those differences rather than treating one worker's result as automatically representative of everyone.
A personal noise dosimeter is intended to measure sound near the worker's hearing zone. Poor microphone placement can affect the relationship between the recorded level and the sound reaching the employee.
The microphone should therefore be positioned consistently in accordance with the monitoring method being followed. It should also remain secure throughout the sampling period and should not be unnecessarily covered, moved or obstructed by clothing or other equipment.
A final dose or average value is useful, but the exposure profile can provide additional context. When measurement data is reviewed against the work timeline, the safety team can investigate which activities or periods made the largest contribution to the worker's exposure.
This moves the discussion from “the factory is noisy” to more useful questions: Which workers receive the highest exposure? During which task? At what time? Is the exposure associated with one process or accumulated across several activities?
Personal dosimetry can identify exposure patterns that deserve closer investigation using task observations, process information or additional sound-level measurements.
Better exposure information helps teams prioritise where engineering, administrative or other workplace noise controls should be evaluated.
Personal dosimetry focuses on the noise experienced by a worker. Boundary or environmental monitoring focuses on sound conditions at a fixed site or perimeter location, so it serves a different monitoring purpose.
For sites that require long-term remote environmental monitoring, our Casella Guardian2 supports remote monitoring and reporting of noise together with other environmental parameters.
Use personal dosimetry when the objective is individual worker exposure. Use a sound level meter when you need detailed measurements at a source or location. Use a fixed monitoring station when the objective is ongoing environmental or site-boundary monitoring.
Treating these instruments as interchangeable can lead to data that does not properly address the monitoring objective.
The value of a personal noise dosimeter depends on how effectively it is selected, configured, used and maintained. We support customers beyond equipment supply so that monitoring teams can move from purchasing an instrument to using it confidently in workplace applications.
Noise-monitoring equipment is often used repeatedly across departments, shifts and future assessments. Training, service and calibration support help organisations maintain a more consistent monitoring process instead of treating each project as an isolated equipment exercise.
You can also view our wider range of safety, health and environmental monitoring equipment for occupational and environmental measurement applications.
The main difference is that we focus on the monitoring requirement as well as the instrument. Compared with simply choosing a dosimeter from a specification sheet, our approach helps customers consider the measurement objective, worker profile, field use and ongoing equipment support before and after purchase.
| Typical equipment-only approach | Our approach | Customer benefit |
|---|---|---|
| Start with model and price | Start with the workplace monitoring objective and exposure pattern | Reduces the risk of buying an instrument that does not match the intended assessment |
| Supply the device | Provide product-selection assistance and user training | Helps teams prepare the equipment for practical field use |
| Focus only on headline specifications | Consider wearer selection, measurement duration, workflow and data needs | Creates a monitoring setup that is easier to use consistently |
| Customer manages future equipment issues alone | Service, repair and calibration support are available | Provides a clearer path for maintaining equipment after purchase |
| One-off transaction | After-sales support forms part of the supplied solution | Supports continued use across future workplace monitoring activities |
A few practical details help us understand whether personal dosimetry is the right next step and how many units may be appropriate for your monitoring programme.
Reliable monitoring starts before the instrument is attached to the worker. A simple field checklist can reduce avoidable errors and make the final data easier to interpret.
Tell us your industry, shift pattern, main noise sources, worker job groups and the number of employees involved. We can help you review whether personal dosimetry, a sound level meter or a combination of monitoring methods is more suitable for your workplace noise programme.
If you already have a noise map, previous measurement data or an assessment requirement, include it with your enquiry so our technical team can better understand the application.
In summary, a workplace may have a clear noise map and still require personal dosimetry to understand what individual workers actually experience over the course of a shift. The key question is not simply whether a machine is loud, but how much noise exposure the employee accumulates while performing real work.
The Casella dBadge2 is designed for personal workplace noise exposure monitoring and provides simultaneous parameter measurement, detailed stored profile data, extended runtime and a compact shoulder-worn format.
If you are planning a workplace noise assessment, contact our team with your shift pattern, main noise sources and worker groups. We can help you select an appropriate monitoring approach and support the equipment through training, service and calibration.
Scienzo Sdn Bhd provides laboratory supplies, scientific instruments, and environmental monitoring equipment in Malaysia. Trusted solutions for various industries since 2021.
