Extech SL400 Personal Noise Dosimeter
The Extech SL400 is a professional noise dosimeter made to measure and record noise exposure in the workplace. It is designed for health and safety professionals who need clear and accurate data to protect workers from harmful noise levels.
This noise dosimeter helps you track sound exposure over time, not just at one moment. This makes the Extech SL400 ideal for use in factories, construction sites, and other noisy environments. It gives you reliable results so you can make safe and informed decisions.
Simple and Accurate Noise Monitoring
The Extech SL400 measures a wide range of sound levels with high accuracy. This means you can trust the results when checking if noise levels are safe. As a noise dosimeter, it records data throughout a full work shift, helping you understand real working conditions.
It supports different frequency weightings and measurement modes, so it can be used in many industries. The Extech SL400 noise dosimeter helps ensure your workplace meets safety standards such as OSHA and ISO.
Easy to Use and Comfortable to Wear
The Extech SL400 is small, lightweight, and easy to carry. Workers can wear this noise dosimeter during long shifts without discomfort. It is simple to set up and use, even for people with little technical experience. Because it is portable, the Extech SL400 noise dosimeter can be used in many different locations without any hassle.
Powerful Data Logging and Analysis
This noise dosimeter can store a large number of readings, allowing you to review noise exposure over time. The Extech SL400 helps you spot patterns and identify areas where noise levels may be too high.
With this data, safety managers can take action to reduce risk. The Extech SL400 noise dosimeter makes it easier to improve workplace safety and keep proper records.
Why Choose the Extech SL400?
The Extech SL400 is a trusted noise dosimeter that combines accuracy, ease of use, and portability. It is built for professionals who need reliable noise measurements every day. Whether you are checking compliance or protecting workers, this noise dosimeter is a smart and practical choice.
Extech SL400 Noise Dosimeter – Technical Specifications
| Features | |
| Measurement Range | 30 to 140 dB |
| Accuracy | ±1.4 dB (at 94 dB, 1 kHz) |
| Frequency Range | 20 Hz to 8 kHz |
| Frequency Weighting | A, C, Z |
| Time Weighting | Fast, Slow, Impulse |
| Measurement Functions | SPL, Leq, SEL, Peak, Min/Max, TWA, Dose |
| Data Logging Capacity | Up to 999,999 readings |
| Sampling Rate | 1 second to 24 hours |
| Standards Compliance | OSHA, MSHA, ISO (configurable) |
| Interface | USB |
| Power Supply | 1 × 9V battery |
| Dimensions | 107 × 65 × 33 mm |
| Weight | 198 g |
| Certifications | CE |
| Warranty | 2 years |
❓ Frequently Asked Questions (FAQ)
Q1: What is the Extech SL400 used for?
A. The Extech SL400 is a noise dosimeter used to measure how much noise a person is exposed to during a working day.
Q2: How does a noise dosimeter work?
A. This unit records sound levels over time and calculates values such as average exposure and peak noise levels.
Q3: Is the Extech SL400 suitable for workplace use?
A. Yes, the SL400 is designed to meet workplace safety standards and is widely used in industry.
Q4: How long can it record data?
A. Long periods, with adjustable settings from 1 second up to 24 hours.
Q5: Is it easy to carry?
A. Yes, this noise dosimeter is lightweight and compact, making it comfortable to wear during a full shift.
How Noise Dosimeters Are Used in Industry
A noise dosimeter is used in many industries to protect workers from loud noise. High noise levels can damage hearing over time, so it is important to measure and control exposure. The Extech SL400 helps companies do this in a simple and reliable way.
Keeping Workers Safe
In workplaces with loud machines, workers can be exposed to harmful noise for many hours. A noise dosimeter tracks this exposure during the whole shift. The Extech SL400 noise dosimeter measures values like average noise levels and total exposure.
This helps safety teams understand if workers are at risk. If levels are too high, they can take action, such as adding hearing protection or reducing time in noisy areas.
Use in Factories and Manufacturing
Factories often have machines that run all day and produce constant noise. A noise dosimeter helps identify which areas are the loudest. The Extech SL400 can be worn by workers to collect real data from the production floor.
This makes it easier to improve working conditions. Companies can change processes, upgrade equipment, or adjust workflows to reduce noise levels.
Construction and Outdoor Work
Construction sites are noisy and always changing. Tools and machines can create sudden loud sounds. A noise dosimeter like the Extech SL400 is useful because it records both steady noise and sudden peaks.
Workers can wear the device while moving around the site. This gives a full picture of their noise exposure throughout the day.
Environmental and Safety Checks
A noise dosimeter is also used in environmental health and safety programmes. It helps measure noise in offices, public areas, and transport settings. The Extech SL400 noise dosimeter can store large amounts of data, making it easy to review and report findings.
This is important for industries like aviation, mining, and transport, where noise levels can be very high.
Making Better Decisions with Data
The Extech SL400 collects detailed data that can be used to improve safety. A noise dosimeter helps companies:
- Find high-risk areas
- Protect workers more effectively
- Meet safety rules
- Keep accurate records
By using a noise dosimeter, businesses can prevent hearing damage and create safer workplaces.
Final Thoughts
The Extech SL400 is a reliable and easy-to-use noise dosimeter for measuring workplace noise. It helps protect workers, improve safety, and ensure compliance with regulations. With its strong features and simple design, the Extech SL400 noise dosimeter is a valuable tool for any industry where noise is a concern.