Autel Speedometer Calibration is essential for ensuring your vehicle’s speed is accurately displayed and that all related systems function correctly. With CARDIAGTECH.NET, discover how Autel diagnostic tools offer precise speedometer adjustments, improving safety and performance. Explore the importance of accurate speed readings, the calibration process, and how it impacts advanced driver-assistance systems, complemented by LSI keywords like “vehicle speed sensor,” “instrument cluster calibration,” and “ECU programming.”
1. Understanding the Importance of Speedometer Calibration
An accurate speedometer isn’t just about knowing how fast you’re going; it’s a critical safety component that affects various vehicle systems. Incorrect readings can lead to speeding tickets, inaccurate mileage tracking, and issues with advanced driver-assistance systems (ADAS).
1.1 The Role of Speedometer Accuracy
The speedometer provides real-time feedback to the driver, enabling informed decisions about speed. This is essential for maintaining safe driving habits and adhering to speed limits. Beyond driver awareness, the speedometer reading is used by the vehicle’s computer to manage engine performance, transmission shifts, and anti-lock braking systems (ABS).
1.2 Consequences of Inaccurate Speedometer Readings
Inaccurate speedometer readings can lead to a cascade of problems:
- Legal Issues: Unknowingly exceeding speed limits can result in fines and increased insurance premiums.
- Safety Risks: Incorrect speed data can affect braking distances and stability control, increasing the risk of accidents.
- Vehicle Performance: The engine and transmission rely on accurate speed data for optimal performance and fuel efficiency.
- Resale Value: Inaccurate mileage can affect the vehicle’s perceived value and create distrust during resale.
1.3 Legal Repercussions of Speedometer Tampering
Across the globe, laws strictly prohibit the tampering or manipulation of vehicle speedometers. These regulations are in place to prevent fraud, ensure safety, and maintain the integrity of vehicle records. Here’s a breakdown:
- United States: Federal law (49 U.S. Code § 32703) prohibits tampering with a motor vehicle’s odometer, with penalties including fines and imprisonment. Many states also have their own specific laws against odometer fraud.
- Europe: The EU Directive 2011/82/EU addresses odometer fraud, requiring member states to implement measures to prevent and penalize the manipulation of odometers. Penalties vary by country but can include fines, imprisonment, and vehicle confiscation.
- United Kingdom: The Consumer Protection from Unfair Trading Regulations 2008 makes it a criminal offense to mislead consumers about the mileage of a vehicle. Offenders can face fines and imprisonment.
- Australia: Each state and territory has its own laws regarding odometer tampering. For example, in New South Wales, the Fair Trading Act 1987 prohibits odometer fraud, with penalties including fines and potential imprisonment.
- Canada: The Criminal Code of Canada prohibits odometer fraud under the broader category of fraud. Offenders can face significant fines and imprisonment.
The penalties for speedometer tampering can be severe, reflecting the serious nature of the offense. It’s essential to comply with all applicable laws and regulations to avoid legal repercussions.
2. Factors Affecting Speedometer Accuracy
Several factors can throw off your speedometer’s accuracy. Understanding these can help you diagnose issues and determine when calibration is necessary.
2.1 Tire Size Changes
Changing tire sizes is one of the most common reasons for speedometer inaccuracies. Larger or smaller tires alter the number of rotations per mile, affecting the speed reading. For example, if you switch from a stock tire size to a larger one, your speedometer will likely read lower than your actual speed.
Here’s how to calculate the effect of tire size changes on speedometer readings:
-
Calculate the circumference of the original tire:
- Circumference = π * Diameter
- Diameter = 2 (Section Width Aspect Ratio / 100) + Wheel Diameter
-
Calculate the circumference of the new tire using the same formulas.
-
Determine the percentage difference:
- Percentage Difference = ((New Tire Circumference – Original Tire Circumference) / Original Tire Circumference) * 100
Example:
- Original Tire: 225/65R17
- New Tire: 245/70R17
Let’s assume the original tire circumference is 90 inches and the new tire circumference is 93 inches.
- Percentage Difference = ((93 – 90) / 90) * 100 = 3.33%
This means your speedometer will read 3.33% lower than your actual speed. So, if your speedometer reads 60 mph, your actual speed is 62 mph.
2.2 Gear Ratio Modifications
Modifying the gear ratio in your vehicle’s differential changes the relationship between engine RPM and wheel speed. This directly impacts the speedometer reading. Lower gear ratios (higher numerically) increase torque but decrease top speed, causing the speedometer to read higher than the actual speed.
2.3 Aftermarket Modifications
Installing aftermarket performance parts, such as engine control unit (ECU) tunes or transmission upgrades, can sometimes affect speedometer accuracy. These modifications may alter the vehicle’s speed calculations, necessitating calibration.
2.4 Wear and Tear
Over time, mechanical components like the speed sensor can wear out or become damaged, leading to inaccurate readings. Regular maintenance and timely replacement of worn parts are essential for maintaining speedometer accuracy.
The Autel MaxiSys Elite scanner, a tool for speedometer calibration.
3. Autel Tools for Speedometer Calibration
Autel offers a range of diagnostic tools that support speedometer calibration, making the process more accessible and accurate for automotive technicians.
3.1 Overview of Autel Diagnostic Tools
Autel diagnostic tools are renowned for their comprehensive capabilities, user-friendly interfaces, and wide vehicle coverage. Models like the MaxiSys Elite, MaxiCOM MK908P, and MaxiDAS DS808 offer advanced functions, including speedometer calibration, ECU programming, and ADAS calibration.
3.2 Specific Autel Models and Their Capabilities
- Autel MaxiSys Elite: This high-end diagnostic tool features a large touchscreen display, J2534 programming capability, and extensive vehicle coverage. It supports advanced functions like speedometer calibration, making it ideal for professional technicians.
- Autel MaxiCOM MK908P: Similar to the MaxiSys Elite, the MK908P offers comprehensive diagnostic and programming capabilities. Its advanced features and user-friendly interface make it a popular choice among automotive professionals.
- Autel MaxiDAS DS808: A versatile and cost-effective diagnostic tool, the DS808 offers a wide range of functions, including speedometer calibration, at a more affordable price point. It’s suitable for both professional technicians and advanced DIYers.
3.3 Software Features for Calibration
Autel diagnostic tools come equipped with specialized software features that streamline the speedometer calibration process. These features include:
- Guided Calibration Procedures: Step-by-step instructions guide technicians through the calibration process, ensuring accuracy and efficiency.
- Vehicle-Specific Data: The tools provide access to vehicle-specific data, such as tire sizes, gear ratios, and calibration parameters, ensuring compatibility and accuracy.
- Data Logging and Analysis: The ability to log and analyze data during calibration allows technicians to identify and address any issues that may arise.
4. Step-by-Step Guide to Autel Speedometer Calibration
Calibrating your speedometer using an Autel diagnostic tool involves a systematic process. Here’s a detailed guide to help you through each step:
4.1 Preparation and Safety Measures
Before starting the calibration process, ensure you have the necessary tools and information.
- Gather Your Tools:
- Autel diagnostic tool (MaxiSys Elite, MaxiCOM MK908P, or MaxiDAS DS808)
- Vehicle communication cable
- Vehicle-specific calibration data (if required)
- Ensure Vehicle Compatibility:
- Verify that your Autel tool supports speedometer calibration for your vehicle’s make, model, and year.
- Safety First:
- Park the vehicle on a level surface.
- Engage the parking brake.
- Turn off the engine and all accessories.
4.2 Connecting the Autel Tool to the Vehicle
- Locate the OBD-II Port:
- The OBD-II port is typically located under the dashboard on the driver’s side.
- Connect the Cable:
- Plug the vehicle communication cable into the OBD-II port.
- Connect the other end of the cable to your Autel diagnostic tool.
- Power On the Tool:
- Turn on the Autel diagnostic tool and wait for it to boot up.
4.3 Accessing the Calibration Function
- Vehicle Identification:
- Follow the on-screen prompts to identify your vehicle. You may need to enter the VIN manually or allow the tool to automatically detect it.
- Navigate to Calibration:
- From the main menu, select “Diagnostics” or “Service.”
- Look for options like “Speedometer Calibration,” “Tire Size Adjustment,” or “Gear Ratio Correction.” The exact wording may vary depending on the tool and vehicle.
- Enter Calibration Mode:
- Select the appropriate calibration function and follow the on-screen instructions to enter calibration mode.
4.4 Inputting Correct Parameters
- Tire Size:
- If you’ve changed tire sizes, enter the new tire size information. This typically includes the tire width, aspect ratio, and wheel diameter.
- Gear Ratio:
- If you’ve modified the gear ratio, enter the new gear ratio value.
- Calibration Values:
- The Autel tool may provide pre-calculated calibration values based on the entered parameters. Verify these values and adjust them if necessary.
- Follow On-Screen Prompts:
- Carefully follow the on-screen prompts to input the correct parameters and initiate the calibration process.
4.5 Verifying Calibration Accuracy
- Road Test:
- After completing the calibration process, perform a road test to verify the accuracy of the speedometer.
- Use a GPS device or smartphone app to compare your actual speed with the speedometer reading.
- Fine-Tuning:
- If the speedometer is still inaccurate, repeat the calibration process and make minor adjustments to the parameters until the readings match.
- Confirmation:
- Once you’ve verified the accuracy of the speedometer, confirm the calibration and exit the calibration mode.
Connecting an Autel diagnostic tool to the vehicle’s OBD-II port.
5. Common Issues and Troubleshooting
Even with the right tools and procedures, you may encounter issues during speedometer calibration. Here are some common problems and how to troubleshoot them:
5.1 Tool Not Recognizing Vehicle
- Problem: The Autel tool fails to recognize the vehicle or establish a connection.
- Solutions:
- Check the Connection: Ensure the vehicle communication cable is securely connected to both the OBD-II port and the Autel tool.
- Verify Vehicle Compatibility: Confirm that your Autel tool supports speedometer calibration for your vehicle’s make, model, and year.
- Update Software: Ensure your Autel tool has the latest software updates installed.
- Check OBD-II Port: Inspect the OBD-II port for damage or corrosion.
5.2 Inaccurate Readings After Calibration
- Problem: The speedometer readings are still inaccurate after completing the calibration process.
- Solutions:
- Verify Parameters: Double-check that you’ve entered the correct tire size, gear ratio, and calibration values.
- Fine-Tune Calibration: Repeat the calibration process and make minor adjustments to the parameters until the readings match.
- Check Speed Sensor: Inspect the speed sensor for damage or wear. A faulty speed sensor can cause inaccurate readings even after calibration.
5.3 Error Messages During Calibration
- Problem: The Autel tool displays error messages during the calibration process.
- Solutions:
- Record the Error Code: Note the error code displayed by the Autel tool.
- Consult the User Manual: Refer to the Autel tool’s user manual for troubleshooting information related to the error code.
- Contact Autel Support: If you’re unable to resolve the issue, contact Autel’s technical support for assistance.
6. Advanced Applications of Speedometer Calibration
Speedometer calibration is not just about correcting inaccuracies; it also plays a crucial role in advanced vehicle systems.
6.1 Integration with ADAS Systems
Advanced Driver-Assistance Systems (ADAS) rely on accurate speed data to function correctly. Features like adaptive cruise control, lane departure warning, and automatic emergency braking use speed information to make critical decisions. Incorrect speedometer readings can compromise the performance and safety of these systems.
6.2 Impact on ABS and Stability Control
Anti-lock braking systems (ABS) and electronic stability control (ESC) also depend on accurate speed data. These systems use speed sensors to detect wheel lockup and loss of traction, adjusting braking force and engine power to maintain control. Inaccurate speedometer readings can interfere with the proper operation of ABS and ESC, increasing the risk of accidents.
6.3 Tuning for Performance
In performance vehicles, speedometer calibration is often necessary after modifications like engine tuning or drivetrain upgrades. Ensuring accurate speed readings is essential for optimizing performance and maintaining the integrity of vehicle systems.
7. Understanding Vehicle Speed Sensors (VSS)
The Vehicle Speed Sensor (VSS) is a critical component in modern vehicles, responsible for measuring the speed of the vehicle and transmitting this information to the Engine Control Unit (ECU) and other systems. Its accuracy is paramount for various functions, including speedometer readings, cruise control, ABS, and transmission control.
7.1 Types of Vehicle Speed Sensors
There are primarily two types of VSS:
- Magnetic (Inductive) VSS: These sensors use a toothed wheel (reluctor ring) that rotates with the transmission output shaft or wheel hub. As the teeth pass by a magnetic pickup, they create a varying magnetic field, inducing an AC voltage signal. The frequency of this signal is directly proportional to the speed of the vehicle.
- Hall Effect VSS: These sensors also use a toothed wheel, but instead of inducing a voltage, they use a Hall effect sensor to detect the passing teeth. The Hall effect sensor generates a digital signal (on/off) as the teeth pass by, providing a more precise and reliable speed reading, especially at low speeds.
7.2 Common Symptoms of a Faulty VSS
A malfunctioning VSS can lead to a variety of symptoms, including:
- Inaccurate speedometer readings
- Cruise control malfunction
- ABS issues
- Rough or erratic shifting
- Check engine light
- Vehicle stalling
7.3 How to Test a VSS
Testing a VSS involves checking its signal output and resistance. Here’s a general procedure:
- Visual Inspection: Inspect the sensor and its wiring for any signs of damage or corrosion.
- Resistance Test: Use a multimeter to measure the resistance of the sensor. Compare the reading to the manufacturer’s specifications.
- Signal Test: Use an oscilloscope or multimeter to measure the sensor’s output signal while the vehicle is in motion (or while manually rotating the wheel). Verify that the signal is consistent and proportional to the speed.
7.4 Replacement and Maintenance
Replacing a faulty VSS is typically a straightforward process. Here are the basic steps:
- Disconnect the negative battery cable.
- Locate the VSS (usually on the transmission or wheel hub).
- Disconnect the electrical connector.
- Remove the VSS (usually held in place by a bolt or clip).
- Install the new VSS, ensuring it is properly seated and secured.
- Reconnect the electrical connector.
- Reconnect the negative battery cable.
- Test the vehicle to verify that the issue is resolved.
Regular maintenance, such as inspecting and cleaning the VSS and its wiring, can help prevent future issues.
8. Cost Considerations
The cost of speedometer calibration can vary depending on several factors, including the type of vehicle, the complexity of the calibration process, and the labor rates in your area.
8.1 DIY vs. Professional Calibration
- DIY Calibration: If you have an Autel diagnostic tool and the necessary technical skills, you can perform speedometer calibration yourself. This can save you money on labor costs, but it requires an investment in the diagnostic tool and a thorough understanding of the calibration process.
- Professional Calibration: Hiring a professional technician to perform speedometer calibration ensures accuracy and reduces the risk of errors. However, it also involves labor costs, which can vary depending on the shop and the complexity of the job.
8.2 Factors Affecting Calibration Costs
- Vehicle Type: Some vehicles require more complex calibration procedures, which can increase the cost.
- Diagnostic Tool: The cost of the Autel diagnostic tool can range from a few hundred dollars for basic models to several thousand dollars for advanced models.
- Labor Rates: Labor rates vary depending on the shop and location.
- Additional Repairs: If the speedometer issue is caused by a faulty speed sensor or other underlying problem, additional repairs may be necessary, increasing the overall cost.
8.3 Average Price Range
On average, professional speedometer calibration can cost between $75 and $250, depending on the factors mentioned above. DIY calibration can be more cost-effective in the long run if you plan to perform calibration on multiple vehicles or offer the service to others.
| Service | Average Cost |
|---|---|
| DIY Calibration (Tool) | $300 – $5000 |
| Professional Calibration | $75 – $250 |
9. Choosing the Right Autel Tool for Your Needs
Selecting the appropriate Autel diagnostic tool depends on your specific needs and budget. Consider these factors to make an informed decision:
9.1 Identifying Your Needs
- Vehicle Coverage: Ensure the tool supports speedometer calibration for the makes, models, and years of vehicles you plan to work on.
- Functionality: Determine the specific functions you require, such as speedometer calibration, ECU programming, ADAS calibration, and diagnostic capabilities.
- Budget: Set a budget and compare the features and capabilities of different Autel tools within your price range.
9.2 Comparing Autel Models
- Autel MaxiSys Elite: The MaxiSys Elite is a high-end diagnostic tool that offers comprehensive functionality and extensive vehicle coverage. It’s ideal for professional technicians who require advanced capabilities and don’t mind paying a premium price.
- Autel MaxiCOM MK908P: Similar to the MaxiSys Elite, the MK908P offers advanced diagnostic and programming capabilities. It’s a popular choice among automotive professionals who need a versatile and reliable tool.
- Autel MaxiDAS DS808: The DS808 is a versatile and cost-effective diagnostic tool that offers a wide range of functions, including speedometer calibration. It’s suitable for both professional technicians and advanced DIYers who want a balance of features and affordability.
9.3 Budget Considerations
- Entry-Level Tools: If you’re on a tight budget, consider entry-level Autel tools like the MaxiCheck MX808 or AL619. These tools offer basic diagnostic functions and may support speedometer calibration on some vehicles.
- Mid-Range Tools: Mid-range Autel tools like the MaxiDAS DS808 offer a good balance of features and affordability. They’re suitable for both professional technicians and advanced DIYers who need a versatile tool without breaking the bank.
- High-End Tools: High-end Autel tools like the MaxiSys Elite and MK908P offer the most comprehensive functionality and extensive vehicle coverage. They’re ideal for professional technicians who require advanced capabilities and don’t mind paying a premium price.
Remember to weigh the cost against the features and benefits each tool offers to find the best fit for your needs.
10. Maintaining Speedometer Accuracy
Maintaining speedometer accuracy involves regular checks and proactive measures. Here are some tips to keep your speedometer reliable:
10.1 Regular Checks
Perform periodic checks of your speedometer’s accuracy, especially after tire changes or other modifications. Use a GPS device or smartphone app to compare your actual speed with the speedometer reading.
10.2 Proper Tire Maintenance
Maintain proper tire inflation and rotate your tires regularly to ensure even wear. Uneven tire wear can affect the accuracy of your speedometer.
10.3 Addressing Issues Promptly
If you notice any signs of speedometer inaccuracy, address the issue promptly. Ignoring the problem can lead to more significant issues and potential safety risks.
10.4 Professional Inspections
Schedule regular inspections with a qualified technician to check the condition of your speed sensor and other related components.
By following these tips, you can help maintain the accuracy of your speedometer and ensure safe and reliable vehicle operation.
11. Staying Compliant with Regulations
Speedometer accuracy is not only a matter of safety and performance; it’s also a legal requirement. Many jurisdictions have regulations regarding speedometer accuracy, and non-compliance can result in fines or other penalties.
11.1 Understanding Local Laws
Research and understand the local laws and regulations regarding speedometer accuracy in your area. These regulations may specify the acceptable range of error and the penalties for non-compliance.
11.2 Meeting Accuracy Standards
Ensure that your speedometer meets the accuracy standards set by your local regulations. Calibrate your speedometer as needed to maintain compliance.
11.3 Documentation
Keep records of any speedometer calibration or repairs performed on your vehicle. This documentation can be helpful in demonstrating compliance with regulations.
12. Future Trends in Speedometer Technology
Speedometer technology is constantly evolving, with new features and capabilities being introduced regularly. Here are some future trends to watch for:
12.1 Digital Dashboards
Traditional analog speedometers are being replaced by digital dashboards in many new vehicles. These digital displays offer greater flexibility and customization, allowing drivers to view speed and other vehicle information in various formats.
12.2 Integration with Navigation Systems
Speedometer data is increasingly being integrated with navigation systems to provide more accurate speed limit information and real-time traffic updates.
12.3 Advanced Calibration Techniques
New calibration techniques are being developed to improve the accuracy and efficiency of speedometer calibration. These techniques may involve using advanced sensors, machine learning algorithms, and cloud-based data.
13. Why Choose CARDIAGTECH.NET for Your Autel Needs
When it comes to Autel diagnostic tools and speedometer calibration, CARDIAGTECH.NET stands out as a trusted and reliable provider. Here’s why you should choose us:
13.1 Wide Selection of Autel Tools
We offer a wide selection of Autel diagnostic tools to meet your specific needs and budget. Whether you’re a professional technician or an advanced DIYer, we have the right tool for you.
13.2 Expert Support and Guidance
Our team of experienced technicians can provide expert support and guidance to help you choose the right Autel tool and perform speedometer calibration effectively. We’re here to answer your questions and provide technical assistance whenever you need it.
13.3 Competitive Pricing
We offer competitive pricing on all our Autel diagnostic tools and services. We’re committed to providing you with the best value for your money.
13.4 Customer Satisfaction Guarantee
We stand behind our products and services with a customer satisfaction guarantee. If you’re not completely satisfied with your purchase, we’ll do everything we can to make it right.
Explore Autel diagnostic tools at CARDIAGTECH.NET.
14. Real-World Examples and Case Studies
To illustrate the importance and benefits of Autel speedometer calibration, here are some real-world examples and case studies:
14.1 Tire Size Upgrade
A vehicle owner upgraded to larger tires for off-road use. After the upgrade, the speedometer read significantly lower than the actual speed, leading to speeding tickets and inaccurate mileage tracking. Using an Autel MaxiSys Elite, a technician calibrated the speedometer to account for the new tire size, restoring accurate readings and preventing further issues.
14.2 Gear Ratio Change
A performance enthusiast modified the gear ratio in their vehicle for improved acceleration. After the modification, the speedometer read higher than the actual speed, affecting the performance of the ABS and stability control systems. Using an Autel MaxiCOM MK908P, a technician calibrated the speedometer to match the new gear ratio, optimizing performance and ensuring the proper functioning of safety systems.
14.3 Speed Sensor Replacement
A vehicle experienced intermittent speedometer readings and ABS issues. After diagnosing the problem, a technician determined that the speed sensor was faulty. After replacing the speed sensor, the technician used an Autel MaxiDAS DS808 to calibrate the speedometer, ensuring accurate readings and restoring the proper functioning of the ABS system.
15. Conclusion
Accurate speedometer readings are essential for safe driving, optimal vehicle performance, and compliance with regulations. Autel diagnostic tools offer a comprehensive solution for speedometer calibration, providing technicians and vehicle owners with the tools they need to maintain accuracy and address any issues that may arise. Whether you’re upgrading tires, modifying gear ratios, or replacing a faulty speed sensor, Autel has you covered.
Ready to ensure your speedometer is accurate and your vehicle is running safely? Contact CARDIAGTECH.NET today for expert advice and the best Autel diagnostic tools. Call us at +1 (641) 206-8880 or visit our website CARDIAGTECH.NET. Our address is 276 Reock St, City of Orange, NJ 07050, United States. Let us help you keep your vehicle performing at its best.
16. Frequently Asked Questions (FAQs)
16.1 What is speedometer calibration?
Speedometer calibration is the process of adjusting a vehicle’s speedometer to ensure accurate speed readings. This is necessary after changes like tire size upgrades, gear ratio modifications, or speed sensor replacements.
16.2 Why is speedometer calibration important?
Accurate speedometer readings are crucial for safe driving, optimal vehicle performance, and compliance with regulations. Inaccurate readings can lead to speeding tickets, affect the performance of ADAS systems, and compromise the functioning of ABS and stability control systems.
16.3 What tools are needed for speedometer calibration?
Speedometer calibration typically requires a diagnostic tool that supports the function, such as an Autel MaxiSys Elite, MaxiCOM MK908P, or MaxiDAS DS808.
16.4 Can I calibrate my speedometer myself?
Yes, if you have the necessary tools and technical skills, you can perform speedometer calibration yourself. However, it’s important to follow the instructions carefully and ensure that you have the correct parameters for your vehicle.
16.5 How much does professional speedometer calibration cost?
Professional speedometer calibration can cost between $75 and $250, depending on the vehicle type, complexity of the calibration process, and labor rates in your area.
16.6 How often should I calibrate my speedometer?
You should calibrate your speedometer whenever you make changes that affect speed readings, such as tire size upgrades or gear ratio modifications. It’s also a good idea to check your speedometer’s accuracy periodically.
16.7 What are the symptoms of an inaccurate speedometer?
Symptoms of an inaccurate speedometer include speed readings that don’t match your actual speed, ABS or stability control issues, cruise control malfunction, and check engine light.
16.8 Can an inaccurate speedometer affect my car’s performance?
Yes, an inaccurate speedometer can affect your car’s performance by interfering with the proper functioning of ADAS, ABS, and stability control systems.
16.9 What is a vehicle speed sensor (VSS)?
A vehicle speed sensor (VSS) is a sensor that measures the speed of a vehicle and transmits this information to the engine control unit (ECU) and other systems.
16.10 Where can I get an Autel diagnostic tool for speedometer calibration?
You can purchase Autel diagnostic tools for speedometer calibration from CARDIAGTECH.NET. We offer a wide selection of tools and expert support to help you choose the right one for your needs. Contact us at +1 (641) 206-8880 or visit our website CARDIAGTECH.NET.
