SL-4012 Sound Level Meter Latest price in Bangladesh | Lutron
The sound level meter price in Bangladesh varies based on features and specifications, but the SL-4012 Sound Level Meter by Lutron stands out for its high precision and advanced functionality. SUJA GLOBAL is the leading Supplier. This device is ideal for professionals who need accurate noise measurement. Whether you are monitoring industrial noise, workplace safety, or environmental sound levels, this model ensures reliability and efficiency. Additionally, it provides both A & C weighting networks, making it a preferred choice for engineers and technicians. Above all, its robust design, user-friendly interface, and compliance with international standards make it one of the best in its category.

TECHNICAL PARAMETER
| Name | Details |
|---|---|
| Model | SL-4012 |
| Manufacturer | Lutron |
| Origin | Taiwan |
| Display | 52 mm x 32 mm LCD (Liquid crystal display), 5 digits with annunciator. |
| Function | dB (A & C frequency weighting), Time weighting(Fast, Slow), Hold, Memory (Max. & Min.), Max. hold, AC output, RS232 output. |
| Measurement Range | 30-130 dB |
| Resolution | 0.1 dB |
| Accuracy (23± 5°C) | Meet IEC 61672 class 2, tested under Input signal level on 94 dB & frequency range from 31.5 Hz to 8 kHz, refer to page 11. |
| Range Selector | Auto range: 30 to 130 dB. Manual range: 3 range, 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step, with over & under range indicating. |
| Frequency | 31.5 to 8,000 Hz |
| Microphone Type | Electric condenser microphone. |
| Microphone Size | Out size, 12.7 mm DIA. (0.5 inch). |
| Weighting Network | Characteristics of A & C. |
| Time Weighting (Fast & Slow) | Fast-t = 200 ms, Slow-t = 500 ms. “Fast” range simulates human ear response time. “Slow” range is for avg. values of vibration sound level. |
| Calibrator | B&K (Bruel & Kjaer), MULTIFUCTION ACOUSTIC CALIBRATOR 4226. |
| Output Signal | AC 0.5 Vrms corresponding to each range step. Output impedance – 600 ohm. |
| RS232 Output | Yes |
| Output Terminal | Terminal 1: RS 232/USB PC serial Interface. Terminal 2: AC output terminal. Terminal socket size: 3.5 mm dia. phone socket. |
| Calibration VR | Built-in external calibration VR, easy to calibrate on 94 dB level by screw driver. |
| Operating Temp. | 0 to 50 °C (32 to 122 °F). |
| Operating Humidity | Less than 80% RH. |
| Power Supply | DC 9V battery, 006P, MN1604(PP3) or equivalent. Alkaline or heavy-duty type. |
| Power Consumption | Approx. DC 6 mA. |
| Dimension | 268 x 68 x 29 mm (10.6 x 2.7 x 1.1 inch). |
| Net Weight/ Gross Weight | 246g/409g (including battery). |
| Accessory Included | Instruction Manual: 1 PC. |
| Optional Accessories | 94 dB Sound Calibrator: Model: SC-941. SC-942. Sound wind shield ball Model: SB-01. RS232 cable (optional). |
| Warranty | One Year Service Warranty |
| After-sales Service Provided | Free Service |
FEATURES
- Large LCD display for clear readability.
- Meets IEC 61672 class 2 standards.
- A & C weighting networks for accurate readings.
- 0.5″ standard microphone head ensures precision.
- Fast & Slow dynamic characteristic modes.
- AC output for system expansion.
- RS232 computer interface for data transfer.
- Auto and manual range selection.
- External calibration adjustment available.
- High-accuracy condenser microphone for stability.
- Memory function stores Max. & Min. values.
- Hold and MAX Hold functions.
- Push-button operation for ease of use.
- Low power consumption for extended battery life.
- Durable ABS-plastic housing for longevity.
- Compact and lightweight for one-hand operation.
APPLICATIONS
- Industrial Noise Monitoring: Ensures workplace safety and regulatory compliance.
- Environmental Noise Assessment: Helps in evaluating noise pollution levels.
- Workplace Safety Compliance: Assists in maintaining health and safety standards.
- Sound Testing in Factories: Ideal for machinery and equipment noise evaluation.
- Educational Research: Useful for scientific and academic studies on sound measurement.
- Traffic Noise Monitoring: Helps in urban planning and noise reduction.
ADVANTAGES
- High Accuracy: Provides precise sound level measurements.
- Easy to Use: Simple interface with push-button operation.
- Durable Build: ABS-plastic casing ensures longevity.
- Multiple Measurement Modes: Offers flexibility with A & C weighting networks.
- Compact & Lightweight: Enables convenient one-hand operation.
- Memory Function: Stores maximum and minimum values for later analysis.
- RS232 Interface: Allows seamless data transfer to computers.
Why Choose SL-4012 Sound Level Meter?
- Certified Quality: Meets international standards (IEC 61672 class 2).
- Reliable Supplier: Available from SUJA GLOBAL, the best supplier in Bangladesh.
- Affordable Price: Offers great value for its features and accuracy.
- User-Friendly Design: Ideal for professionals and first-time users alike.
- Advanced Features: Includes calibration adjustment, memory storage, and multiple weighting options.
- Long Battery Life: Ensures prolonged usage without frequent replacements.
CONCLUSION
The SL-4012 Sound Level Meter Latest Price in Bangladesh reflects its superior quality and feature set. It remains an excellent choice for professionals across various industries. Whether measuring workplace noise, environmental sound, or industrial operations, this device provides precise and reliable results. Additionally, its robust design and compliance with international standards make it a must-have for engineers and technicians. In summary, if you are looking for the best sound level meter, SUJA GLOBAL is the top supplier in Bangladesh, offering competitive prices and excellent service.
VIDEO REVIEW
FAQ
What does a digital sound level meter do?
A digital sound level meter, above all, measures noise levels accurately. In particular, it detects sound pressure and displays readings in decibels (dB). Additionally, it helps monitor noise pollution in workplaces, concerts, and industrial zones. After all, excessive noise harms hearing and health. Likewise, professionals use it for environmental assessments. By and large, it provides precise sound measurements, whereas traditional methods lack accuracy. Also, it ensures compliance with noise regulations. Certainly, it plays a crucial role in maintaining safe sound environments.
How to use a digital sound level meter?
Before using a digital sound level meter, turn it on and select the appropriate settings. In addition, position it at ear level for accurate results. Also, avoid obstructions that may affect readings. Comparatively, different settings measure various noise frequencies. Occasionally, calibration ensures precise measurements. In contrast, background noise can alter readings. Whenever measuring, hold it steady for consistency. Afterward, analyze the recorded data. All things considered, regular calibration and proper placement improve accuracy.
Can my phone measure sound level?
Generally, smartphones can measure sound levels using apps, but their accuracy remains questionable. After all, built-in microphones lack professional calibration. In summary, apps provide an estimate, whereas dedicated meters offer precision. Additionally, environmental factors affect phone-based readings. In another case, external microphones enhance accuracy. Otherwise, relying on a phone for professional noise assessment may not be ideal. Certainly, for casual use, sound meter apps help. Eventually, users prefer digital meters for critical measurements.
ফোনের সাউন্ড মাপা যায়?
অবশ্যই, ফোনের মাধ্যমে সাউন্ড মাপা সম্ভব, কিন্তু পেশাদার ডিভাইসের তুলনায় কম নির্ভুল। তুলনামূলকভাবে, কিছু অ্যাপ ভালো কাজ করে, তবে বিল্ট-ইন মাইক্রোফোন সীমাবদ্ধতা রাখে। বিশেষ করে, শোরগোলযুক্ত পরিবেশে ফোনের রিডিং কম নির্ভরযোগ্য হতে পারে। একইভাবে, বাইরের মাইক্রোফোন ব্যবহার করলে নির্ভুলতা বাড়ে। অন্যথায়, পেশাদার কাজের জন্য সাউন্ড লেভেল মিটারই ভালো। সবকিছু মিলিয়ে, সাধারণ ব্যবহারের জন্য ফোন কার্যকর হলেও, সুনির্দিষ্ট পরিমাপের জন্য ডেডিকেটেড ডিভাইসই সেরা।





















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