Sound Level Meters: Everything You Need to Know About Noise Measurement

It is a critical issue to handle it the right way, as noise pollution is an increasing challenge especially in those areas which are often urbanized or heavily industrialized. Whether it's occupational safety, environmental monitoring, or personal wellness, measuring sound levels with precision is the top most important thing to do. Which is what sound level meters come into play. These gadgets allow professionals and individuals to measure loudness and to secure the sharing of information with the help of support legal and safety regulations.

What is a Sound Level Meter?

A sound level meter is a device that is made to get to knowledge of how loudness of a sound is based on the sound pressure. The system comprises a microphone, an amplifier, a frequency weighting filter, and a display screen showing the level of sound measured.

Components of a Sound Level Meter

• Microphone: Captures sound waves and converts them into electrical signals.

• Amplifier: Enhances the signal for better accuracy.

• Frequency Weighting Filters: Adjust the response of the meter to match human hearing.

• Display and Data Logger: Shows real-time noise levels and stores data for analysis.

How Does a Sound Level Meter Work?

Sound waves convert to electrical signals when they hit the microphone. Through frequency-weighting filters (A, C, or Z), these signals are handled in the same way the human ear does. The end product is the indication of decibels (dB) on a display screen.

Types of Sound Level Meters

Class 1 Sound Level Meter

A Class 1 sound level meter offers higher accuracy and a wider frequency range, making it ideal for laboratory and professional environmental noise assessments.

Class 2 Sound Level Meter

A Class 2 sound level meter is slightly less accurate and is used for general noise monitoring applications, including workplace safety and community noise assessments.

Difference Between Class 1 and Class 2 Sound Level Meters

Feature	Class 1	Class 2
Accuracy	Higher	Lower
Frequency Range	Wider	Narrower
Application	Professional & Laboratory	General Monitoring

Applications of Sound Level Meters

• Industrial Noise Monitoring: Ensuring worker safety in factories.

• Environmental Noise Assessment: Evaluating noise pollution levels in urban areas.

• Workplace Safety & Compliance: OSHA regulations for hearing protection.

• Construction Site Noise Monitoring: Managing noise impact on nearby communities.

Key Features to Look for in a Sound Level Meter

• Frequency Weighting: A-weighting is commonly used for human hearing.

• Time Weighting: Fast, slow, and impulse response modes.

• Data Logging: Stores readings for further analysis.

• Calibration & Accuracy: Regular calibration ensures precise measurements.

How to Use a Sound Level Meter Correctly

• Position the meter at ear level.

• Avoid reflective surfaces.

• Use the appropriate weighting settings.

Legal and Regulatory Standards

• OSHA guidelines for workplace noise exposure.

• ISO 9612 standards for occupational noise measurement.

• Environmental noise regulations in urban planning.

Choosing the Right Sound Level Meter

• Consider the purpose of measurement.

• Check for compliance with legal standards.

• Opt for reliable brands like Ono Sokki, Brüel & Kjær, and Extech.

Calibration and Maintenance

• Calibrate regularly using a sound calibrator.

• Store in a dry, dust-free environment.

Advanced Sound Level Meters and New Technologies

• Smartphone integration for real-time monitoring.

• AI-based noise pattern analysis.

Common Myths About Sound Level Meters

• “Smartphones are just as accurate” – They lack precision compared to professional meters.

Advantages of Using a Sound Level Meter

• Ensures compliance with regulations.

• Protects hearing and enhances workplace safety.

Conclusion

Sound level meters are indispensable in noise measurement for the sake of maintaining compliance with standards and the protection of health. When deciding which sound level meter to purchase, you may need a Class 1 sound level meter if you have to be very precise in your measurements, and if you want a sound level meter just for checking noises in general, you will want a Class 2 device. Choosing the proper tool is a must for noise. You must choose the one that best suits your needs.

How FFT Analyzers Enhance Sound and Vibration Analysis Across Industries

 Among the different industries, sound and vibration analysis are very important, such as the automotive and aerospace sectors. The use of an FFT analyzer is one of the most essential tools for detecting and solving noise and vibration issues. But what is the FFT analyzer, and what is the use of it that makes it an absolute necessity? Let’s get to the bottom of this.

What is an FFT Analyzer?

FFT analyzers that are also Fast Fourier Transform (FFT) analyzers are pieces of equipment which can separate the frequency of the signals usually will be a complex combination of signals. This has made them the best option for analyzing sound and vibration data and applications that are more diverse.

Key Features of FFT Analyzers

• High-frequency resolution

• Real-time signal processing

• Wide dynamic range

• Portable and user-friendly designs

Importance of FFT in Sound and Vibration Analysis

FFT empowers engineers to characterize the frequency domain, therefore to unambiguously identify the location of noise or vibration sources. This attribute is essential for the success of the operation and safety of the structure.

The Role of Sound and Vibration Analyzers in Modern Applications

Sound and vibration analyzers use FFT technology to measure and analyze noise and vibration levels. These tools are essential for maintaining high standards of safety, comfort, and efficiency across industries.

How FFT Analyzers Work

The Fundamentals of FFT (Fast Fourier Transform)

Fast Fourier Transform (FFT) is the process of translating time-varying signals into frequency domain representations of the mathematical procedure. The change of this application makes it simpler to analyze complex waveforms.

How FFT Analyzers Process Data

Data Acquisition and Conversion

The analyzer captures raw signals using sensors, then converts them into digital data.

Frequency Domain Representation

When it becomes digital, the signal and the subsequent frequency spectrum are the result. There, one can trace detailed information of the characteristics.

Applications of FFT Analyzers Across Industries

Automotive Industry

• Noise, Vibration, and Harshness (NVH) Testing: Noise, vibration, and discomfort can be one of the causes of the failure in safety and comfort of the vehicle that have been identified by the use of FFT Analysers.

Aerospace Industry

• Aircraft Structural Analysis: These tools detect structural issues, enhancing safety and performance.

Manufacturing and Industrial Equipment

• Predictive Maintenance Using Vibration Analysis: FFT analyzers monitor equipment health, predicting failures before they occur.

Consumer Electronics

• Sound Quality Optimization: FFT analyzers are used by engineers to enhance the acoustic (electric) of their gadgets which are like speakers and earphones.

Environmental and Building Acoustics

• Noise Pollution Monitoring: FFT analyzers help assess environmental noise levels to ensure regulatory compliance.

Benefits of Using FFT Analyzers

Precision and Accuracy

FFT analyzers deliver reliable results, even for complex signals.

Real-Time Analysis

Real-time capabilities allow for instant diagnostics and decision-making.

Versatility Across Applications

From industrial to consumer applications, FFT analyzers cater to a wide range of needs.

Cost-Effectiveness in Long-Term Operations

By preventing downtime and enhancing efficiency, these tools reduce operational costs.

Choosing the Right FFT Analyzer

Key Considerations

Frequency Range

Ensure the analyzer covers the frequency spectrum relevant to your application.

Resolution and Sensitivity

High resolution and sensitivity are crucial for accurate analysis.

Popular Tools and Devices

Leading brands offer robust FFT analyzers equipped with advanced features to suit diverse industries.

Conclusion

Recent technological breakthroughs have propelled sound and vibration analysis to a new level of sophistication, placing it at an extraordinary level for accuracy and versatility. Such tools are commonly employed in various sectors, in which safety, performance, and efficiency are looked up to, giving a clue to their indispensability in the modern era of applications.

Mastering Sound and Vibration Inspection with Advanced Technology

 

In industrial settings, ensuring the optimal performance and longevity of machinery is essential. Advanced tools for sound and vibration analysis allow engineers and technicians to assess the health of machines by examining their acoustic and vibrational patterns. A leading Japanese company, Ono Sokki india has pioneered innovative technology in this field, offering a suite of products designed to make inspections efficient, effective, and easy to execute. From basic sound level meters and vibration analyzers to sophisticated, computer-based measurement systems, their solutions empower professionals to detect potential issues early, reduce unexpected downtime, extend equipment lifespan, and improve operational efficiency.

Versatile Tools for Machine Health Monitoring

The Vibration Comparator is a compact, portable device that measures and displays vibration levels, providing a quick and straightforward way to evaluate machinery health. Ideal for field inspections, this device is especially useful in environments where regular machine checks are needed to prevent unexpected failures. By providing instant feedback on vibration levels, it enables technicians to catch minor issues before they escalate, reducing maintenance costs and improving reliability.

For those requiring more advanced diagnostics, the Sound and Vibration Inspection offers comprehensive analysis capabilities. This analyzer provides a detailed breakdown of sound and vibration data, enabling in-depth assessment of machine performance and wear. With its user-friendly design, this tool simplifies complex analysis, making it accessible to both seasoned engineers and new technicians. These products are invaluable for industrial and laboratory settings, ensuring quick identification of issues and helping maintain system performance.

Precision Sound Testing for High-Quality Audio Products

In audio technology fields, ensuring sound testing is a priority. This Japanese brand’s software solutions enable precise sound testing, essential for meeting customer expectations. With its intuitive interface and robust analysis features, the software allows users to measure, record, and analyze sound data with exceptional accuracy. It’s ideal for diverse applications, including speaker design, headphone testing, and acoustic evaluation. Real-time frequency analysis, customizable test parameters, and data logging capabilities make it a go-to tool for audio engineers and researchers who require high precision in their work.

Enhanced Operational Efficiency with Advanced Technology

Investing in cutting-edge sound and vibration inspection tools delivers numerous benefits:

• Early Detection of Issues: Advanced sound and vibration analysis helps identify minor issues before they develop into serious problems, preventing costly repairs.
• Improved Equipment Longevity: Regular inspection and maintenance, supported by precise diagnostic tools, help extend the lifespan of machinery.
• Reduced Downtime: By detecting problems early, companies can perform scheduled maintenance instead of facing unexpected breakdowns.
• Increased Efficiency: Accurate, user-friendly tools allow technicians to carry out inspections quickly, boosting overall productivity.
• Quality Control: Precise inspection on production lines ensures that only high-quality products reach the market, reinforcing customer trust.

In conclusion, this Japanese company’s sound and vibration inspection technology provides comprehensive solutions for evaluating machinery, equipment, and product quality. From portable devices like the Vibration Comparator to sophisticated analyzers and FFT comparators, these tools enable accurate, efficient assessments of equipment health and performance. By integrating these tools into their workflows, companies can enhance productivity, reduce maintenance costs, and ensure high standards across operations.

 

For any clarifications or queries, please feel free to contact us:

Mobile: +91–92055–92194 or +91–92055–92195

Email ID: osid@onosokki.co.in

Website: www.onosokki.co.in

 

Enhancing Your Vehicle’s Performance with a Digital Engine Tachometer

 

When it comes to optimizing engine performance, the right tools are crucial. One standout instrument in this category is the Ono Sokki Digital Engine Tachometer. This advanced device not only delivers accurate measurements of engine RPM (Revolutions Per Minute) but also enhances diagnostic capabilities across various applications. Let’s delve into how the tachometer can elevate your engine management experience.

A precision rotational speed measurement device is used to measure the speed of engines and motors. Its clear digital display of RPM makes it ideal for use in industrial and laboratory settings. Its compact and portable design allows for easy use in the field, ensuring performance monitoring wherever needed.

Benefits of the Digital Engine Tachometer

1. Accurate Performance Monitoring

One of the key advantages is its ability to provide real-time RPM data. This instant feedback allows engineers and technicians to make informed adjustments to optimize performance, whether in a workshop or out in the field.

2. Versatile Applications

This tachometer is versatile, accommodating both gasoline and diesel engines, as well as electric and hybrid vehicles (EV/HEV). In addition to measuring rotational speed, it is able to measure the rotational speed of a wide variety of motors and rotating bodies.

3. Enhanced Diagnostics

Equipped with advanced diagnostic features, the Hand Held Tachometer helps monitor engine health effectively. It can detect potential issues early, such as misfires or irregular RPM readings, allowing for timely interventions that can save time and money on repairs.

4. Compatibility with Multiple Sensors

The CT-6700 model supports ten different types of sensors, including ignition pulse detectors and magneto-electric rotation detectors. This flexibility makes it adaptable to various engine types and applications, ensuring accurate readings regardless of the setup.

5. Innovative Measurement Techniques

The ability to measure engine rotation speed using ECU crank signals is a notable feature, especially when mounting a detector is impractical. This innovation streamlines the monitoring process, providing reliable data without the need for complex installations.

Installation and Considerations

Installing the Tachometer is generally straightforward, particularly for those familiar with engine systems. Most units come with detailed installation instructions. However, if you’re not comfortable with installation, consulting a professional is recommended to ensure optimal performance.

Key Considerations:

• Compatibility: Make sure that your tachometer is compatible with your vehicle's engine type and application.
• Features: Discover the extensive range of features, such as sensor compatibility and diagnostics.
• Brand Reputation: Opt for a trusted brand like Ono Sokki, known for delivering quality and reliability.

Conclusion

The Digital Engine Tachometer is more than just a measuring instrument; it’s an essential asset for anyone looking to enhance engine performance and diagnostics. With its accurate monitoring, versatility, and advanced features, investing in this tachometer can lead to improved efficiency and reliability in engine management. Whether you’re a seasoned technician or a dedicated enthusiast, this technology provides the insights necessary to take your engine performance to new heights.

 

For any clarifications or queries, please feel free to contact us:

Mobile: +91–92055–92194 or +91–92055–92195

Email ID: osid@onosokki.co.in

Website: www.onosokki.co.in

 

Exploring the Versatility of Ono Sokki's Non-Contact RPM Detector in Various Industries

Ono Sokki’s OM-1500/1200 Non-Contact RPM Detector have significantly enhanced the way industries measure rotational speed, particularly in gasoline engines and EV/HEV motors. Designed specifically for rotation measurement, these detectors offer a non-intrusive method to monitor engine performance by detecting magnetic flux leakage from motors or the engine's ignition coil. This makes them a versatile solution across a variety of industries, from automotive to manufacturing.

Key Features of OM-1500/1200 Non-Contact RPM Detector

The devices is easy to use and highly durable. They measure engine rotation by simply attaching them parallel to the ignition coil for gasoline engines or perpendicular to the motor’s rotating shaft when monitoring EV/HEV motors. Their non-contact nature ensures no wear and tear, reducing maintenance needs and prolonging the equipment's life. Compatible with several of engine tachometers—such as the GE-2500, AR-7240B, and CT-6520B—these detectors provide accurate and reliable RPM data, even in demanding environments.

Applications in Automotive Industry

For automotive applications, these detectors are invaluable for measuring engine speed without interrupting operation. In electric (EV) and hybrid (HEV) vehicles, it can detect the magnetic flux leakage from the motor itself, making it ideal for modern vehicles that require precision in monitoring performance. By gathering detailed rotational data, engineers can improve vehicle efficiency and reduce emissions. The ease of attaching the detector to the ignition coil ensures that testing can be done quickly and effectively.

Use in Manufacturing

In manufacturing, the need for accurate RPM measurement extends to heavy machinery such as conveyor systems, pumps, and motors. Further, they are ideal for ensuring optimal performance of rotating machinery without physical contact, preventing any damage during the process. This helps manufacturers avoid costly downtime due to machine failure while maintaining smooth operations. The detector’s compatibility with multiple tachometers further enhances its usability across various machine types.

Power Generation and Research

Power generation facilities, which rely heavily on turbines and other rotating equipment, can utilize these detectors for precise RPM monitoring. The ability to detect even small changes in rotational speed without requiring physical contact ensures that turbines operate efficiently, reducing mechanical stress and optimizing energy output. Research labs that work with rotating equipment can also benefit from these detectors, as they offer non-intrusive, precise measurements crucial for experiments and performance evaluations.

The Motor and Compressor Tachometer by Ono Sokki are a powerful tool for industries requiring accurate and non-invasive rotational speed measurements. From automotive testing in gasoline and EV/HEV engines to optimizing manufacturing machinery and power generation turbines, these detectors provide a reliable and efficient solution. Their ability to measure RPM without physical contact ensures longer equipment life, enhanced safety, and improved productivity across various industrial applications.

 

For any clarifications or queries, please feel free to contact us:

Mobile: +91–92055–92194 or +91–92055–92195

Email ID: osid@onosokki.co.in

Website: www.onosokki.co.in

 

 

 

 

Exploring the Functionality of Chassis Dynamometers

 

Chassis dynamometers are sophisticated testing tools that simulate real-world driving conditions in a controlled environment. They calculate performance parameters for a car, such as torque, horsepower, and fuel economy. The dynamometer replicates various driving scenarios by placing the motorcycle's driven wheels on rollers, allowing for detailed performance analysis.

The Two Wheeler Chassis Dynamometer  has just undergone an upgrade, increasing its capacity to accommodate a wider variety of motorcycle testing. This system is designed to deliver precise and comprehensive data for performance, endurance, and exhaust gas emission tests, making it a versatile tool for manufacturers, researchers, and performance tuners.

Key Features

1. AC Dynamometer with Electrical Inertia Control: This feature allows for the precise simulation of riding conditions by controlling the inertia electrically. It ensures accurate performance and endurance testing by replicating real-world scenarios with high fidelity.
2. High-Accuracy Torque Detector: Equipped with a high-accuracy torque detector, the system provides precise data for control and measurement purposes. This is essential for detailed analysis and optimization of the motorcycle's performance.
3. Comprehensive Testing Components: The system includes necessary components for performance and endurance tests, such as a front wheel holding unit, a driver's display, and a driver's aid. These components enhance the testing process, making it more efficient and user-friendly.
4. Optional Emission Testing Software: The system offers optional software for emission data processing, which is crucial for analyzing exhaust gases and ensuring motorcycles meet environmental standards.
5. Conformance to Global Regulations: The dynamometer system conforms to various international regulations, ensuring its applicability in different regulatory environments.
6. Peripheral Equipment and Technical Support: Ono Sokki provides a full line of peripheral equipment and technical support for testing room design, ensuring users can create an optimal testing environment.

Applications of the System

The usage in various sectors:

1. Performance Testing: By simulating different riding conditions, the dynamometer measures the motorcycle's power, torque, and overall performance. This helps identify areas for improvement and ensures that the bike performs optimally under various conditions.
2. Endurance Testing: The system replicates long-term riding conditions to test the motorcycle's durability and reliability. This helps manufacturers identify potential issues affecting the motorcycle's longevity and performance.
3. Exhaust Gas Emission Testing: With the optional emission testing software, the dynamometer analyzes exhaust gases to ensure the bike complies with environmental regulations. This is particularly important given the increasing focus on reducing vehicle emissions.

Benefits of Using the Chassis Dynamometers

The system offers several significant benefits:

1. Precision and Accuracy: The high-accuracy torque detector and electrical inertia control provide precise data essential for detailed analysis and optimization.
2. Versatility: The system's ability to handle performance, endurance, and emission tests makes it a versatile tool for various applications.
3. Regulatory Compliance: Conforming to international regulations ensures the system can be used globally, facilitating market entry in different regions.
4. Efficiency: Comprehensive testing components and optional emission software streamline the testing process, saving time and resources.
5. Support and Customization: Technical support for testing room design and peripheral equipment availability allows users to customize their testing environment according to their specific needs.

The two-wheeler chassis Dynamometer system represents a significant advancement in motorcycle testing technology. This system provides precise, reliable, and comprehensive data by addressing diverse testing needs and incorporating superior technology. Its conformance to global regulations and technical support for testing room design make it an invaluable tool for manufacturers, researchers, and performance tuners.

The demand for accurate and trustworthy testing instruments will only increase as the automotive sector develops. With its advanced features and comprehensive support, the dynamometer system is well-positioned to meet these needs, ensuring that motorcycles are safe, high-performing, and environmentally compliant.

 

For any clarifications or queries, please feel free to contact us:

Mobile: +91–92055–92194 or +91–92055–92195

Email ID: osid@onosokki.co.in

Website: www.onosokki.co.in

 

The Benefits of Ono Sokki's Sound Testing

 

In today's noisy world, where loud sounds are everywhere, finding moments of peace and quiet isn't just a nice idea—it's really important. Companies, engineers, and researchers are always looking for ways to reduce noise, not just to make people more comfortable but also to keep our communities and environment healthy. This is where Ono Sokki comes in. We're leaders in creating testing solutions that bring a lot of benefits to anyone who wants to achieve top-notch sound quality.

Understanding the Essence

Sound measurement is all about measuring how loud things are in different places. It's super important for lots of industries like cars, airplanes, building stuff, and making things. The main aim is simple: make sure things follow the rules, make products better, give people a good experience, and lessen how noise affects people and nature.

With many years of experience, we are a top provider of testing tools and solutions, especially for sound and vibration inspection. Let's explore the many advantages their advanced technologies offer.

Precision and Accuracy

We focus on being very precise and accurate with what we offer. Our instruments are designed using the newest technologies, which means you can rely on them to give consistent and trustworthy measurements. Whether you're checking how loud a car engine is, testing how well building blocks sound, or keeping an eye on vibrations in machines, our tools give engineers and researchers the exact data they need.

Comprehensive Solutions for Diverse Needs

Every testing need is different, and we understand that. That's why we provide a variety of tools and solutions designed for different industries. Whether you need a simple handheld sound level meter for quick checks on-site or a more advanced FFT analyzer for detailed frequency analysis, our range of products covers a wide range of requirements. This means that no matter if you're doing basic noise checks or complex acoustic research, we have the perfect tool for you.

Efficiency in Testing Processes

In any industry, time is really important, and we've made sure that our solutions are all about being efficient. Our tools are easy to use, so engineers and technicians can run tests quickly and precisely. This efficiency not only saves time, but it also helps boost productivity. This means faster decision-making based on test results.

Ensuring Regulatory Compliance

In lots of businesses, it's really important to follow the rules about how much noise things can make and how well we block sound. If you don't follow these rules, it can lead to big problems like getting into trouble with the law, having to pay fines, and even damaging your reputation. Our sound solutions are really useful here because we help companies check everything properly to make sure their products and buildings meet the rules.

Optimizing Product Design and Performance

For companies that make things, knowing how their products sound is really important. Our tools help engineers really get into the details of how their creations sound. We can find ways to make them better and more innovative. Whether it's making a car sound just right, making a household appliance quieter, or making a building more comfortable for the people inside, our tools are the key to making products really great.

Enhancing User Experience

In today's world filled with noise, having a quieter space usually means a better quality of life. The constant buzz of home gadgets or the loud sounds of engines can be really irritating and stressful. When companies use our sound solutions, we can make products that focus on making users feel more comfortable and relaxed. Whether it's making HVAC systems quieter, adjusting the volume of electronic devices, or enhancing the sound quality of buildings, these efforts help create calmer and more pleasant places to live and work.

Environmental Stewardship

Testing is not only important for our own comfort but also for taking care of our environment. Loud noises can really harm animals and their homes, messing up the balance of nature and changing how animals act. When companies use our ideas to make less noise from things like factories, cars, and building sites, we're helping keep our planet healthier for everyone.

Innovative Research and Development

The study of sounds is always changing, with new problems and chances coming up all the time. Our dedication to creating new ideas means that our solutions always use the latest technology. This doesn't just help industries now; it also sets the stage for amazing research and progress in the future. Whether it's making better noise-cancelling technology or finding new ways to block sound, there's a lot we can do.

Efficiency and Time-Saving

One big benefit of our products is that we make things run smoother and better. These tools are designed to make testing much faster without sacrificing accuracy. We have a wide range of products for all kinds of testing needs, including sound testing.

Industry-Leading Expertise

Since 1954, Ono Sokki has been a top manufacturer in the measurement and testing equipment industry. We are known for their high-quality products, especially in the automotive engineering sector, showing their dedication to providing excellent tools and systems.

Considerations for Sound Evaluation

• Real-Time Frequency Analysis: This feature allows you to see and analyze the frequency of sounds as they happen. You can observe how the sound changes across different pitches instantly.
• Customizable Test Parameters: You have the ability to adjust and tailor the testing settings according to your specific needs. This means you can set up the tests exactly as required for your project or research.
• Data Logging Capabilities: With this feature, all the results and findings from the tests are recorded and saved automatically. This makes it easy to review past tests, track changes over time, and compare different scenarios.

Conclusion

In the world of sound, we are proud to be known for our excellence. Our precise tools, all-encompassing solutions, and dedication to innovation bring numerous advantages to various industries, researchers, and communities globally. Whether it's ensuring that rules are followed, improving product designs, making user experiences better, or helping with environmental protection, the impact of our Sound and Vibration Analyzer is felt far and wide.

As we live in a world full of sound, the need for accurate, dependable, and efficient testing is incredibly important. In this mix of noise and quiet, our instruments play a crucial role, blending industry, innovation, and environmental care.

By embracing the benefits of testing, we not only create more peaceful and comfortable spaces for ourselves but also set the stage for a better, more harmonious relationship with the world around us. In our pursuit of acoustic perfection, we stand as a steadfast partner, magnifying the advantages of testing for a future that's both brighter and quieter.

For any clarifications or queries, please feel free to contact us:

Mobile: +91–92055–92194 or +91–92055–92195

Email ID: osid@onosokki.co.in

Website: www.onosokki.co.in