How to design a metal dome switches? Tactile dome switch

Posted on March 20, 2025 by seo_li

How to design a metal dome switches? Metal dome switches are essential components in modern electronic devices, offering superior tactile feedback and durability. Whether used in industrial machinery, medical devices, or consumer electronics, they ensure precise and reliable actuation. Designing these switches requires attention to factors like force, dome shape, and PCB layout to optimize performance.

As a professional metal dome switch manufacturer, BEST Technology focuses on the manufacture of high-quality metal dome switches. We use high-quality materials to ensure excellent conductivity and durability. In terms of design, we focus on the optimization of dome shape, size and welding process to meet the specific needs of customers. Choosing us means choosing professionalism and reliability.

How to design a metal dome switches? Tactile dome switch

What is the tactile dome?

A tactile dome is a small, stainless steel component that acts as a switch when pressed. It provides a crisp, responsive “snap,” signaling to the user that an action has been registered. Unlike rubber domes, which provide a softer feel, metal domes offer sharper tactile feedback, improving accuracy and usability.

These domes are used in various applications, from remote controls to medical devices. Their longevity makes them ideal for high-use environments. The distinct click they produce reassures users, preventing accidental key presses and ensuring reliable functionality.

What are the different types of dome switches?

Dome switches come in different shapes and sizes, each offering unique benefits. Choosing the right type depends on the required tactile response, durability, and space constraints.

Four-Legged Domes: These domes have four extended legs that provide a stable actuation. They distribute force evenly, ensuring a consistent tactile response. This type is widely used in membrane keypads and industrial control panels.

Triangular Domes: Triangular domes create a sharper tactile feel, making them ideal for applications requiring strong feedback. They are commonly found in high-precision equipment and rugged keypads.

Round Domes: Round domes offer a softer actuation while maintaining a distinct click. They are often used in consumer electronics, where a balance between comfort and responsiveness is needed.

Oblong Domes: Oblong domes have an elongated shape, allowing them to distribute force across larger buttons. They are beneficial in designs where space is limited but reliability is crucial.

Each type has specific advantages. The right selection enhances user experience and ensures long-lasting performance.

How are domes switch designed?

Designing a dome switch involves several key factors that affect its usability and longevity. Engineers carefully optimize each aspect to create a smooth and responsive interface.

1. Actuation Force

The force required to press the switch varies based on application needs. Lighter forces (around 100g) are ideal for devices requiring quick and effortless actuation. Higher forces (up to 400g) provide stronger feedback, reducing accidental presses.

How to design a metal dome switches? Tactile dome switch

2. Dome Shape and Size

The shape of the dome determines the actuation feel and durability. A well-designed dome maintains consistent performance over millions of presses. Sizes range from 4mm to over 20mm, depending on application requirements.

3. Click Ratio

The click ratio measures how sharp the tactile feedback is. A higher ratio (above 60%) provides a more defined click, improving user satisfaction. Lower ratios create softer feedback, preferred in quieter environments.

4. Material and Coating

Most domes are made from stainless steel for durability. Some are gold-plated to enhance electrical conductivity and prevent oxidation. Proper material selection ensures reliable performance even in harsh conditions.

5. PCB Layout and Adhesive Placement

The dome must align perfectly with the PCB’s contact points. Incorrect positioning leads to inconsistent actuation. High-quality adhesives secure the domes, preventing movement while maintaining electrical connectivity.

A well-executed design enhances switch responsiveness, longevity, and overall device performance.

How do dome switches work?

Dome switches operate by momentarily closing an electrical circuit when pressed. Beneath the dome, conductive traces on the PCB remain separated until pressure is applied. When the dome collapses, it bridges the circuit, sending an electrical signal to the device.

The moment pressure is released, the dome snaps back to its original position. This quick recovery ensures the switch is ready for the next actuation. The sharp snap users feel results from the dome’s elasticity, providing both tactile and auditory feedback.

Because of their precise engineering, metal domes offer rapid response times, making them ideal for devices that require accurate input.

Are dome switches good?

Yes, dome switches provide several advantages that make them superior to other switch types. Their key benefits include:

Exceptional Durability: Metal domes withstand millions of actuations without performance degradation. Unlike rubber-based switches, they retain their original force and tactile response over time.

Fast and Reliable Actuation: The sharp tactile feedback ensures users know when a key has been pressed. This makes dome switches ideal for industrial controls, medical instruments, and automotive interfaces.

How to design a metal dome switches? Tactile dome switch

Lightweight and Compact: These switches add minimal weight to devices, making them perfect for portable electronics. Their compact size also allows for more flexible design configurations.

Superior Electrical Contact: Metal domes ensure consistent and stable signal transmission. The direct metal-to-metal contact minimizes resistance, improving response time and reliability.

Versatile Applications: From consumer gadgets to military-grade equipment, dome switches adapt to various environments. Their resilience makes them the preferred choice for demanding applications.

Compared to membrane or rubber-based alternatives, metal dome switches maintain their performance longer, making them a worthwhile investment.

What is a dome switch keyboard?

A dome switch keyboard uses domes under each key to provide tactile feedback. These keyboards can use either metal or rubber domes.

Metal Dome Keyboards – Provide a sharper tactile response, ideal for professionals who need precision. They last longer and maintain their feel over time.

Rubber Dome Keyboards – Offer a softer, quieter feel. These are common in budget-friendly consumer keyboards but wear out faster.

Metal dome keyboards excel in durability and responsiveness, making them the preferred option for specialized applications.

What is the height of a dome switch?

Dome switch height varies based on design requirements. Standard heights range from 0.3mm to 1.5mm.

How to design a metal dome switches? Tactile dome switch

Lower domes (0.3mm – 0.6mm) require less force and are used in thin devices.

Higher domes (1.0mm – 1.5mm) provide stronger feedback and are favored in industrial settings.

Choosing the right height ensures the best balance between tactile feedback and user comfort.

Conclusion:

Designing a metal dome switch requires precision. From actuation force to dome shape, every detail impacts performance. Proper design guarantees a crisp, reliable tactile response, ensuring user satisfaction.

Dome switches stand out for their durability, responsiveness, and reliability. Selecting the right dome type and design ensures optimal results. For expert advice on designing metal dome switches, contact us at sales@metal-domes.com

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How to fabricate a small circular metal dome?

Posted on March 20, 2025 by seo_li

How to fabricate a small circular metal dome? The production of small circular metal dome involves precision craftsmanship, and multiple processes are required from design to finished product. First, the size and shape are designed according to the requirements, and high-quality metal materials such as stainless steel or beryllium copper are selected. They are formed by precision stamping or laser cutting, and then heat treated to optimize elasticity and toughness. Finally, they are pressed and formed by high-precision molds and strictly tested to ensure that each dome has excellent performance and high reliability.

As a professional metal dome manufacturer, BEST Technology has advanced equipment and exquisite craftsmanship, and can manufacture metal dome of various sizes and types. Whether it is a small round dome or a custom dome with a complex shape, we can produce it accurately to ensure that each dome has excellent elasticity and durability to meet your diverse needs.

How to fabricate a small circular metal dome?

What is a circular metal dome?

A circular metal dome is a small, round, and flexible metallic component used primarily in switch mechanisms. It acts as a momentary contact switch, delivering tactile feedback when pressed. Made from stainless steel or other conductive metals, these domes ensure durability and reliability in electronic circuits.

When a user presses a button equipped with a round metal dome, it deforms slightly, completing an electrical circuit. Upon release, it returns to its original shape, ensuring longevity and consistent performance. This simple yet effective mechanism makes dome switches essential in consumer electronics, automotive controls, and medical devices.

How to make a steel dome?

Fabricating a steel dome requires precision and expertise. The process starts with selecting the right material. Stainless steel is often used due to its high strength, corrosion resistance, and excellent electrical conductivity.

Material Selection: The first step is choosing the right grade of stainless steel. Thin sheets with high elasticity and conductivity are ideal. The material must withstand repeated use without losing its shape.

Cutting the Metal Sheet: A precise cutting method, such as laser cutting or stamping, is used to shape the metal dome. High-speed machines cut out perfect circles, ensuring consistency in size and shape.

Forming the Dome Shape: The cut metal piece is then pressed into a dome shape using specialized forming tools. This step is crucial for defining the dome’s height, curvature, and tactile force.

Heat Treatment: To enhance durability, the formed dome metal undergoes heat treatment. This process strengthens the material, ensuring it retains its elasticity even after extensive use.

Surface Finishing: A smooth finish is necessary to prevent oxidation and enhance conductivity. The domes are cleaned and coated if needed to maintain their efficiency over time.

Quality Testing: Every circular metal dome undergoes strict quality control checks. Engineers test them for durability, electrical resistance, and tactile response to ensure they meet industry standards.

How to make a dome shaped?

Shaping a round metal dome requires advanced machinery. Using high-precision forming dies, the metal is pressed into the required dome curvature.

The depth and diameter must be carefully controlled. If the dome is too shallow, it won’t provide a strong tactile feel. If it’s too deep, it may become too rigid. The right balance ensures the dome delivers a satisfying response with every press.

How to make circular metal dome?

A circular metal dome follows the same shaping principles as a dome switch. However, different industries have specific requirements. Some domes require additional coatings for better conductivity. Others need specialized designs to fit complex circuits.

Laser cutting or precision stamping ensures smooth edges and accurate dimensions. Forming machines create the dome curvature, and heat treatment enhances its resilience. The result is a highly durable dome switch that lasts for millions of presses.

What are the sizes of circular metal dome?

Round metal domes come in various sizes, typically ranging from 3mm to 12mm in diameter. The height and force resistance vary depending on the application. Smaller domes are used in compact devices, while larger domes provide a stronger tactile feel.

How to fabricate a small circular metal dome?

Different industries require different force levels. A dome switch used in a remote control may require light pressure, while an industrial machine switch may need a firmer response. These variations ensure the domes perform optimally in their respective applications.

What are the advantages of round metal dome?

Superior Tactile Feedback: A round metal dome delivers a crisp and responsive feel, enhancing user experience.

  • Durability and Longevity: These domes can withstand millions of cycles without losing performance. High-quality materials ensure they remain functional even after repeated use.
  • High Conductivity: Made from stainless steel or plated metals, dome metal ensures excellent electrical conductivity.
How to fabricate a small circular metal dome?
  • Compact and Versatile: The small size of circular metal domes allows them to fit in compact devices without compromising performance.
  • Resistant to Wear and Tear: Unlike rubber or plastic alternatives, metal domes do not degrade over time.

What are the disadvantages of round metal dome?

Although dome switches offer many advantages, they do have some limitations:

Higher Manufacturing Costs: Producing high-precision domes requires specialized equipment and quality materials, which can increase costs.

More Rigid Feel: Compared to membrane switches, metal domes can feel firmer, which may not be suitable for every application.

Potential Noise: The crisp tactile feedback can produce a slight clicking sound, which may not be ideal in noise-sensitive environments.

What are the applications of circular metal dome?

Circular metal domes are found in a variety of industries, providing reliable switching solutions across multiple fields.

Electronics and Consumer Devices: Many household gadgets, such as remote controls, calculators, and gaming controllers, use dome switches for precise input.

Medical Equipment: Medical devices require high-precision dome switches for accurate operation.

Automotive Industry: Car dashboard controls, steering wheel buttons, and other vehicle components use round metal domes for their durability and responsiveness.

How to fabricate a small circular metal dome?

Industrial Controls: Machinery and industrial panels often use dome metal switches because they can withstand harsh environments and frequent use.

Aerospace and Military Equipment: In high-stakes applications, metal domes provide the precision and reliability needed for mission-critical operations.

Conclusion:

Fabricating a small circular metal dome requires precision, expertise, and high-quality materials. These tiny but powerful components offer exceptional durability, tactile feedback, and electrical performance.

If you need high-quality circular metal domes, reach out to us at sales@metal-domes.com. Our expert team can help you find the perfect solution for your application.

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Custom Switch Manufacturer – Custom Switches

Posted on March 14, 2025 by seo_li

As a professional custom switch manufacturer, BEST Technology focuses on designing and producing high-quality metal dome switches. Metal dome switches are widely used in various devices due to their excellent tactile feedback and durability. BEST Technology provides a full range of services from appearance design to functional customization, including dome shape, size, material selection and welding process optimization.

Custom Switch Manufacturer - Custom Switches

What is a metal dome switch?

Metal dome switch is a type of momentary switch that provides crisp tactile feedback when pressed. It consists of a flexible membrane, a printed circuit board (PCB), and a metal dome. When the dome is pressed, it collapses and makes an electrical connection, completing the circuit. Once released, the dome returns to its original shape, breaking the circuit.

This unique design offers fast response time and reliability, making it a preferred choice in many applications. From medical equipment to aerospace controls, metal dome switches deliver accuracy, consistency, and longevity.

How to customize a dome switch?

Customizing a dome switch starts with understanding its function and application. Every detail matters, from the feel of the button to its durability. Here’s how to create the perfect custom switch:

Choose the Right Metal Dome: The shape, size, and force of the dome affect how the switch feels. Round, four-leg, triangle, and oblong domes each offer different tactile responses.

Custom Switch Manufacturer - Custom Switches

Select the Overlay Material: The top layer of the switch can be polyester, polycarbonate, or other materials. Each affects durability and user experience.

Customize the Circuit Design: The circuit can be designed with different layouts, traces, and layers to ensure smooth performance.

Add LED Indicators: Many industries require LED feedback for better usability. A custom LED switch panel manufacturer can integrate backlighting or indicator lights.

Incorporate Adhesives and Spacers: Proper spacing and adhesion ensure longevity and responsiveness.

Test for Performance: Every switch must undergo rigorous testing to ensure it meets industry standards for durability and precision.

With the right custom switch manufacturer, every detail can be optimized to match specific needs.

What is the best switch manufacturer?

The best switch manufacturer isn’t just about making switches—it’s about engineering perfection. A top manufacturer understands material science, electrical performance, and user experience.

Key factors to consider when choosing a manufacturer include:

Experience and Expertise: Years of experience in custom switch production ensure refined techniques and superior quality.

Custom Switch Manufacturer - Custom Switches

Advanced Manufacturing Techniques: Precision cutting, laser etching, and high-quality printing ensure reliability.

High-Quality Materials: From metal domes to overlays, only top-grade materials should be used.

Customization Capabilities: Whether you need a custom membrane switch manufacturer or a custom toggle switch manufacturer, versatility matters.

Stringent Quality Control: Every switch must pass electrical, mechanical, and environmental tests before reaching customers.

Choosing the right manufacturer means getting switches that last longer and perform better.

What are the types of custom switches?

Custom switches come in different forms, each tailored to specific needs. The main types include:

Membrane Switches: Thin, flexible, and highly customizable, these are used in medical devices and industrial panels.

Metal Dome Switches: Providing tactile feedback, these switches are common in control panels and consumer electronics.

LED Switch Panels: Custom LED switch panel manufacturers integrate lighting for visibility in low-light conditions.

Toggle Switches: Rugged and durable, these are ideal for industrial and automotive applications.

Capacitive Touch Switches: These respond to touch without physical movement, offering a sleek, modern look.

Each switch type serves a specific function, ensuring optimal performance for different industries.

How to choose a metal dome in a custom switch?

The metal dome is the heart of the switch. Its selection impacts the tactile feel, actuation force, and durability. When choosing the right dome, consider these factors:

Shape: Round domes offer a softer press, while four-leg domes provide a sharper click. Triangle domes are compact, and oblong domes work well in elongated designs.

Actuation Force: The force needed to press the dome ranges from light (100g) to heavy (600g). The right force ensures comfort and usability.

Material: Stainless steel domes resist corrosion and last longer. Nickel-plated options offer additional protection.

Durability: High-quality domes withstand millions of presses without losing performance.

A custom membrane switch manufacturer can fine-tune the dome selection for the best user experience.

How does a metal dome switch work?

A metal dome switch functions through simple yet effective mechanics. When a user presses the switch, the metal dome collapses, touching the conductive traces on the PCB. This completes the circuit and sends a signal. As soon as the user releases the switch, the dome returns to its original shape, breaking the connection.

What are the advantages of a metal dome switch?

Metal dome switches offer several benefits:

Crisp Tactile Feedback: Users can feel and hear the response, reducing input errors.

High Durability: These switches last for millions of cycles, ensuring long-term reliability.

Compact Design: Their slim profile makes them suitable for space-limited applications.

Customizable Actuation Force: Light or heavy force can be chosen based on user preference.

Custom Switch Manufacturer - Custom Switches

Fast Response Time: The immediate contact ensures seamless operation.

Excellent Conductivity: Metal domes provide stable and efficient electrical contact.

These advantages make metal dome switches a preferred choice in critical applications.

What are the disadvantages of a metal dome switch?

While metal dome switches offer numerous benefits, they do have some limitations:

Limited Waterproofing: Without proper sealing, moisture can affect performance.

Higher Cost Than Rubber Keypads: The materials and design may be more expensive.

Wear Over Time: Repeated use can slightly degrade performance after millions of cycles.

However, these challenges can be minimized with high-quality manufacturing and protective coatings.

Custom Switch Manufacturer – Metal Dome Manufacturing

BEST Technology is a leading custom switch manufacturer, specializing in high-performance metal dome switches. With years of expertise, cutting-edge production techniques, and strict quality control, BEST Technology ensures precision in every product.

Custom Switch Manufacturer - Custom Switches

As a custom membrane switch manufacturer, BEST Technology provides tailored solutions to meet specific industry demands.

Conclusion:

Custom switches are essential for industries that demand precision and durability. Among them, metal dome switches offer superior tactile feedback, responsiveness, and longevity. Whether you need custom membrane switches manufacturers or a custom LED switch panels manufacturer, selecting the right manufacturer is key.

If you need high-quality custom switches, reach out to sales@metal-domes.com. Get expert advice, tailored designs, and top-tier performance today!

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Soldered Switches? How to Solder Metal Dome?

Posted on March 12, 2025 by seo_li

When soldering metal dome switches, pay attention to the following points: First, choose the appropriate soldering method according to the shape and size of the metal dome (such as round, triangular, etc.). When soldering, it is recommended to use manual soldering or wave soldering, the temperature is controlled below 300?, and the soldering time does not exceed 3 seconds. For metal domes with feet, avoid completely soldering the feet to avoid affecting the elasticity of the dome and shortening its service life.

Soldered Switches? How to Solder Metal Dome?

What does soldered switches mean?

Soldered switches refer to switches that have metal domes permanently attached through soldering. Unlike snap domes placed on a circuit without permanent bonding, these domes become an integral part of the switch. This ensures a firm, lasting connection.

Soldering metal domes provides stability and enhances performance. It prevents movement, reducing the chances of failure due to displacement. This method is commonly used in high-precision applications where consistency matters.

How to solder metal dome to PCB?

Soldering metal domes requires precision and the right technique. Here’s how it’s done:

  • Prepare the PCB and Dome: Ensure the PCB is clean and free of dust. Place the metal dome in the designated position.
  • Apply Flux: A small amount of flux helps the solder flow properly. It improves adhesion and prevents oxidation.
Soldered Switches? How to Solder Metal Dome?
  • Heat the Soldering Iron: The right temperature is crucial. Set the iron to around 280-350°C, depending on the materials.
  • Apply Solder: Use a small amount of solder to attach the metal dome. Be careful not to use too much, as excess solder can cause shorts.
  • Check the Connection: Once cooled, inspect the solder joint. It should be smooth and shiny, indicating a solid bond.
  • Test the Switch: Before assembly, test the switch to ensure it functions correctly. Poor soldering can cause unreliable actuation.

Using the right technique ensures a long-lasting and stable connection. Precision is key.

Are the solder methods for different types of metal dome the same?

Not all metal domes are soldered the same way. The method varies based on dome shape, size, and material.

  • Gold-Plated Domes: Need extra care, as excessive heat can damage the plating.
  • Dimple Domes: Require precise solder application to avoid altering actuation force.

Each type demands a specific approach to achieve optimal performance. Using improper soldering techniques can affect functionality and lifespan.

What is the advantage of soldered switches?

Soldering metal domes onto switches offers several key advantages:

Increased Stability: The dome remains securely in place, reducing failures.

Longer Lifespan: Strong solder joints prevent wear and tear caused by movement.

Soldered Switches? How to Solder Metal Dome?

Better Conductivity: A direct solder connection enhances electrical performance.

Higher Reliability: No shifting means consistent actuation, crucial for high-precision applications.

Resistance to Environmental Factors: Dust, moisture, and vibration have less impact on a soldered switch.

These benefits make soldered switches a preferred choice in industries demanding durability and precision.

Which is a disadvantage of soldering switches?

Despite the benefits, soldered switches have some drawbacks:

Difficult to Replace: Unlike hotswap switches, soldered ones require desoldering for repairs.

Requires Skill: Poor soldering can lead to bad connections or damage.

Less Flexibility: Once soldered, customization is limited.

However, with the right tools and expertise, these issues can be minimized. The durability of soldered switches often outweighs these disadvantages.

How to lube soldered switches?

Lubricating soldered switches can improve their feel and longevity. Here’s how to do it:

Disassemble the Switch: Remove the keycap and carefully open the housing.

Identify Friction Points: Focus on the contact areas where metal parts interact.

Apply Lubricant: Use a high-quality switch lubricant. Avoid over-application, as excess lube can interfere with electrical contact.

Reassemble and Test: Put everything back together and check for smooth operation.

Lubing reduces friction, making keystrokes smoother and quieter. It also extends the life of the switch.

How to remove soldered switches?

Removing soldered switches requires care and the right tools:

  • Heat the Soldering Iron: Set it to the appropriate temperature to melt the solder without damaging components.
  • Apply Desoldering Wick or Pump: Use a desoldering wick to absorb the molten solder, or a pump to suction it away.
  • Gently Remove the Switch: Once the solder is cleared, carefully lift the switch without forcing it.
  • Clean the PCB: Remove any residual solder or flux to prepare for a new switch.

Proper desoldering prevents damage and ensures a smooth replacement process.

What is the difference between hotswap and soldered switches?

Hotswap and soldered switches have key differences:

  • Installation: Hotswap switches can be replaced easily without soldering. Soldered switches require permanent attachment.
  • Durability: Soldered switches provide a more secure and stable connection. Hotswap sockets can wear out over time.
Soldered Switches? How to Solder Metal Dome?
  • Customization: Hotswap switches allow quick changes, while soldered switches require desoldering for modifications.

Hotswap switches offer convenience, while soldered switches excel in reliability and longevity. The choice depends on the application and user preference.

Conclusion:

Soldered switches provide a stable, reliable, and long-lasting solution for many electronic applications. Proper soldering ensures durability and consistent performance. While they require more effort to modify or repair, their advantages often outweigh the downsides.

For high-quality metal domes and expert guidance, contact sales@metal-domes.com

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Circuit Board Button: How Does It Works?

Posted on February 13, 2025 by Love Dome

A circuit board button is a crucial component in electronic devices, allowing users to interact with circuits through a simple press. Whether it’s a button circuit board in a remote control or a circuit board push button switch in industrial equipment, these buttons play a key role in signal transmission and device functionality.

When choosing a circuit board push button, several factors impact its performance. The working mechanism, durability, and repairability determine how well it functions over time. Understanding metal domes—specifically their travel distance, shape, size, actuation force, and dimple design—is essential for achieving optimal tactile feedback and reliability. This guide will cover how these factors influence performance, how to fix a faulty button, and what makes Best Technology a trusted manufacturer for high-quality circuit board buttons and metal domes.

Circuit Board Button: How Does It Works?

What Is a Circuit Board Button?

A circuit board button is a type of switch mounted on a printed circuit board (PCB) that allows users to control an electronic device through physical interaction. These buttons are commonly found in consumer electronics, industrial machines, medical equipment, and automotive controls. They serve as an interface between the user and the circuit, enabling various functions such as turning a device on or off, adjusting settings, or triggering specific actions.

Circuit board buttons come in different forms, including push buttons, tactile switches, dome switches, and membrane switches. Each type is designed for specific applications based on factors like tactile feedback, durability, and actuation force. Some buttons provide a soft press, while others offer a distinct “click” to confirm activation.

The design of a button circuit board includes essential components such as a conductive pad, a spring mechanism (metal dome or rubber dome), and a contact point on the PCB. When the button is pressed, the metal dome collapses, creating an electrical connection that sends a signal to the circuit. Once released, the dome returns to its original shape, breaking the connection and resetting the button. This simple yet effective mechanism ensures fast and reliable switching, making circuit board push buttons suitable for a wide range of applications.

What Does a Button Do in a Circuit?

A button in a circuit acts as a mechanical switch that opens or closes an electrical connection, allowing current to flow and triggering a specific function in an electronic device. When pressed, the button completes the circuit, sending an electrical signal to the system. When released, it breaks the connection, stopping the signal. This simple mechanism is essential in various applications, from turning devices on and off to controlling complex electronic operations.

In most circuit board button designs, pressing the button causes a conductive material, such as a metal dome or a conductive rubber pad, to make contact with the PCB, enabling the flow of electricity. The circuit detects this change and processes the input accordingly. Some buttons offer momentary action, meaning they only stay active while being pressed, while others, like toggle switches, remain in their new state until pressed again.

Different types of circuit board push button switches serve various functions in electronic circuits:

  • Power Buttons: Control the main power supply of a device, turning it on or off.
  • Reset Buttons: Momentarily break a circuit to restart a system, commonly found in computers and industrial equipment.
  • Mode-Selection Buttons: Change device settings or modes, such as volume control on remote controls or function selection on medical devices.
  • Input Buttons: Used in keypads, game controllers, and industrial controls to register commands.
Circuit Board Button: How Does It Works?

How Do Circuit Board Buttons Work?

Circuit board buttons work through mechanical or electrical contact. Inside a push button switch, a conductive material touches two terminals when pressed. This action closes the circuit and allows current to pass. Some advanced buttons use capacitive or piezoelectric mechanisms, which respond without physical movement. Each type has unique benefits, like durability or fast response times.

For precise performance, metal domes are often used in circuit board buttons. These small metal components provide tactile feedback, ensuring reliable operation. They improve button lifespan and user experience, making them popular in industrial and consumer applications.

How to Fix a Button on a Circuit Board?

A faulty button can cause issues like unresponsive controls or inconsistent performance. Fixing it involves these steps:

1. Check for Debris: Dust or dirt can block electrical contact. Cleaning with isopropyl alcohol often helps.

2. Inspect the Solder Joints: Loose or cracked solder joints may interrupt the connection. Re-soldering can restore function.

3. Test the Button: Use a multimeter to check continuity. If the button doesn’t respond, replacement may be necessary.

4. Replace the Button: Carefully remove the damaged button and install a new one with proper soldering techniques.

If multiple buttons fail, checking the circuit traces is important. A professional PCB repair service can help when the issue is more complex.

Circuit Board Button: How Does It Works?

Circuit Board Button Applications

Circuit board buttons are found in various industries. Some key applications include:

  • Consumer Electronics: Remote controls, keyboards, and gaming devices rely on tactile buttons.
  • Medical Equipment: Precise and responsive buttons are critical for diagnostic and monitoring devices.
  • Automotive Systems: Dashboard controls, touch panels, and ignition switches use durable button designs.
  • Industrial Machines: Heavy-duty buttons control machinery, ensuring safety and efficiency.

When choosing a circuit board push button, factors like actuation force, lifespan, and material composition should be considered. High-quality buttons ensure reliability in demanding environments.

How to Choose Metal Domes in Circuit Board Buttons?

Metal domes play a crucial role in circuit board buttons, affecting their tactile response, durability, and overall performance. Selecting the right metal dome ensures a reliable button press, making it essential for applications in consumer electronics, industrial controls, and medical devices. Here’s a detailed guide on key factors to consider when choosing metal domes:

1. Travel Distance – Short vs. Long Travel

Travel distance refers to how far the metal dome moves when pressed before making contact with the circuit board. It affects the button’s feel and responsiveness.

Short Travel (0.1mm – 0.3mm):

  • Provides a crisp and fast response.
  • Used in applications where speed is essential, like mobile devices and medical equipment.
  • Requires less force, reducing user fatigue.

Long Travel (0.3mm – 1.0mm):

  • Offers a softer feel with a smoother transition.
  • Common in automotive dashboards and industrial control panels where a firm press is preferred.
  • Reduces accidental activations due to its increased resistance.

The choice between short and long travel depends on user preference and application needs. Short-travel domes work well for fast and frequent use, while long-travel domes provide a more noticeable tactile feedback.

2. Metal Dome Shapes – Four-Leg, Triangular, Round, and Oblong

Metal domes come in different shapes, each affecting how the button responds when pressed. The most common types include:

  • Four-Leg Domes:

The most popular choice for PCB buttons.

Provides even force distribution for a stable and consistent press.

Ideal for remote controls, keyboards, and handheld devices.

  • Triangular Domes:

Offers sharper tactile feedback compared to four-leg domes.

Used in applications where a distinct “click” is necessary.

Preferred in medical devices and industrial controls.

  • Round Domes:

Provides soft and uniform actuation.

Suitable for applications requiring a smoother touch, like consumer electronics.

Often used in membrane switches and touch panels.

  • Oblong Domes:

Designed for elongated button areas like game controllers or car dashboards.

Spreads force over a larger area, reducing wear on individual contact points.

The shape of the dome affects the tactile response and actuation force, making it essential to match it with the user’s needs.

3. Sizes – Small vs. Large Domes

The size of the metal dome influences both the feel and durability of the circuit board button.

Small Domes (4mm – 8mm):

Require less force and offer a soft press.

Common in handheld electronics and compact control panels.

Best for applications where a light touch is needed.

Large Domes (8mm – 16mm+):

Provide stronger tactile feedback.

Suitable for industrial, automotive, and heavy-duty applications.

More durable and can handle millions of cycles.

Selecting the right size ensures the button meets both user experience expectations and durability requirements.

Circuit Board Button: How Does It Works?

4. Actuation Force – Light vs. Heavy Press

Actuation force refers to the amount of pressure needed to activate the button. It is measured in grams (gF) and varies depending on the dome’s design.

Low Actuation Force (100gF – 200gF):

Requires minimal pressure to press.

Used in soft-touch applications like mobile phones and medical devices.

Reduces hand fatigue for repeated use.

Medium Actuation Force (200gF – 400gF):

Balanced between responsiveness and resistance.

Suitable for consumer electronics and general-purpose buttons.

High Actuation Force (400gF – 800gF):

Requires a firm press, reducing accidental activation.

Used in automotive controls, industrial equipment, and rugged applications.

Choosing the right actuation force improves user comfort and prevents unintentional button presses.

5. Dimpled vs. Non-Dimpled Metal Domes

Metal domes can come with or without dimples, and this design feature influences the tactile response.

Dimpled Domes:

Provide a smoother tactile feel with a gradual press.

Helps keep the dome centered, improving long-term durability.

Often used in high-precision applications where consistency is important.

Non-Dimpled Domes:

Have a crisp and sharp click with immediate feedback.

Ideal for applications where a strong tactile response is necessary.

Common in keyboards, gaming controllers, and industrial machines.

The dimple design fine-tunes the button’s performance based on the user’s preference for a smooth or sharp feel.

Why Choose Best Technology for Metal Domes?

Choosing the right metal dome is key to achieving the best button performance. Best Technology specializes in custom metal domes and dome arrays, ensuring high-quality tactile response, durability, and precision.

With years of experience, we provide tailored solutions for different industries, including consumer electronics, automotive, and medical devices. Our advanced manufacturing ensures each metal dome meets exact specifications, providing reliable performance over millions of cycles.

If you’re looking for top-tier metal domes for your circuit board buttons, Best Technology offers expert guidance and premium-quality components. Contact us today to find the right metal dome solution for your project.

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PCB Switch: How Do You Connect a Switch to a PCB?

Posted on February 12, 2025 by Love Dome

What is a PCB Switch?

A PCB switch is a key component used in electronic circuits to control the flow of electricity. These switches are mounted directly onto a printed circuit board. Common in devices like our computers, keyboards, and consumer electronics, PCB switches can turn circuits on or off, create input commands, or change settings. Because they are compact, durable, and versatile, PCB switches are highly favored in modern electronics manufacturing.

PCB switches come in various types, including tactile, mechanical, and membrane switches, each serving a specific function depending on the application.

PCB Switch: How Do You Connect a Switch to a PCB?

What is a PCB?

Before diving further into PCB switches, let’s first understand the PCB itself. A printed circuit board (PCB) serves as the backbone of most modern electronics. It is a board made from a non-conductive material that supports and connects electrical components using conductive pathways (traces). These traces allow signals and power to move between different components, like resistors, capacitors, and integrated circuits.

PCBs can be single-layer, double-layer, or multi-layer, depending on the complexity of the design. The layers help in accommodating various components while ensuring that the size of the device remains compact.

How Do You Connect a Switch to a PCB?

Connecting a switch to a PCB might sound complex, but with the right steps, it becomes straightforward. Most PCB switches are designed to be soldered directly to the board. Here’s how the connection process works:

1. Identify the switch terminals

    Every switch has a set of terminals that either complete or break the circuit. Understanding these terminals is crucial as they dictate where the connections go on the PCB.

    2. Align the switch with the PCB pads

    Once the terminals are identified, align the switch with the designated pads on the PCB. These pads are usually labeled for easy identification.

    3. Soldering

    The next step is soldering the switch terminals to the pads. Soldering is the process of melting a metal alloy (solder) to create a secure connection between the terminal and the pad. Care should be taken to avoid overheating the switch or PCB, as this can damage the components.

    PCB Switch: How Do You Connect a Switch to a PCB?

    4. Testing the connection

    After soldering, it’s essential to test the connection to ensure the switch is properly integrated into the circuit. This can be done with a multimeter to check for continuity or using the actual power supply to verify functionality.

    How Do You Test a PCB Switch?

    Testing a PCB switch is necessary to ensure it functions correctly and is properly integrated into the circuit. There are a few different methods to test a PCB switch:

    • Continuity Testing with a Multimeter: One of the simplest ways to test a switch is by using a multimeter set to continuity mode. Place the multimeter’s probes on the switch terminals. If the switch is working, it will complete the circuit when pressed, and the multimeter will beep or show continuity. If there is no continuity, it indicates that the switch might be faulty.
    • Functional Testing in the Circuit: Another method is to test the switch while it is installed in the circuit. Power up the device and see if pressing the switch performs the expected function. For example, if it’s a power switch, check if the device turns on or off as intended.
    • Visual Inspection: Sometimes, physical damage can hinder a switch’s operation. Inspecting the switch for loose connections, cracks, or corrosion can provide insights into potential failures.
    • Automated Testers: In high-volume manufacturing, automated systems like flying probe testers or bed-of-nails testers are used to check multiple points on the PCB, including switches. These machines can rapidly assess the functionality of the entire board, including switches, to ensure that everything operates as expected.

    Regular testing of PCB switches is crucial to catch potential issues early, preventing larger problems later in the device’s lifespan.

    Are PCB Switches Hot-Swappable?

    Yes, PCB switches can be hot-swappable, but it depends on the PCB design. A hot-swappable PCB allows switches to be inserted and removed without soldering, making customization and maintenance easier. These PCBs have pre-installed hot-swap sockets (like Kailh or Gateron hot-swap sockets) that hold mechanical switches securely. However, a standard soldered PCB requires desoldering and resoldering switches, making changes more difficult.

    If you want hot-swappable switches, ensure the PCB supports it. Some keyboards have hybrid designs where only certain keys are hot-swappable.

    PCB Switch Types

    PCB switches can be categorized based on mounting style, switch type, and application:

    1. Mounting Style

    • PCB-Mount Switches – Have 5 pins (2 electrical + 3 plastic pins) for better stability on PCBs.
    • Plate-Mount Switches – Have 3 pins (only electrical) and require a metal plate for stability.

    2. Switch Type

    • Mechanical Switches – Includes tactile, linear, and clicky switches (e.g., Cherry MX, Gateron, and Kailh).
    • Membrane Switches – Flexible, low-profile, and common in budget keyboards.
    • Optical Switches – Use light beams instead of metal contacts for faster response.

    3. Application-Based

    • Tactile Switches – Provide a noticeable bump when pressed, offering feedback without a loud click. Popular for typing and programming. (e.g., Cherry MX Brown, Gateron Brown)
    • Linear Switches – Have a smooth keystroke with no bump or click, ideal for gaming due to their fast actuation. (e.g., Cherry MX Red, Gateron Yellow)
    • Clicky Switches – Make an audible click with a tactile bump, giving strong feedback. Best for those who enjoy loud typing. (e.g., Cherry MX Blue, Kailh Box White)
    • Silent Switches – Designed to reduce noise while maintaining the feel of tactile or linear switches. (e.g., Cherry MX Silent Red, Gateron Silent Brown)

    Which PCB Switch Type Should You Choose?

    • If you prefer customization and easy swapping, hot-swappable PCB switches are best.
    • If stability is a priority, PCB-mount switches work better on compatible PCBs.
    • For gaming, linear switches offer faster key response.
    • For office or quiet environments, silent switches reduce noise while maintaining comfort.

    PCB switches are critical for controlling electronic circuits, with options tailored to mounting styles, mechanisms, and use cases. Proper installation and testing ensure reliability, while selecting the right type enhances device performance. Whether building a keyboard or industrial equipment, understanding PCB switches empowers efficient design and maintenance.

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    What are SMD Switches? SMD Switch Types

    Posted on February 10, 2025 by Love Dome

    What is an SMD Switch?

    An SMD (Surface-Mounted Device) switch is a type of switch designed to be mounted directly onto the surface of a printed circuit board (PCB). Unlike traditional through-hole switches, which require holes to be drilled into the PCB, SMD switches are compact and fit neatly on the board’s surface. They are typically smaller, making them suitable for modern electronic devices where space is a premium.

    SMD switches come in a variety of types, such as tactile switches, slide switches, and push-button switches, each serving different purposes in circuit designs. These switches are mounted using soldering techniques, often with automated machines, providing a reliable connection and ensuring minimal risk of board damage.

    What is the Purpose of an SMD Switch?

    The primary purpose of an SMD switch is to allow users to control electronic circuits. Depending on the design, SMD switches can turn devices on or off, select between different modes, or adjust settings within the system. For example, a tactile SMD switch might be used in a portable device to toggle between modes, while an on/off switch controls the power supply.

    SMD switches are highly versatile, making them suitable for a wide range of applications, from mobile phones and wearables to consumer electronics and industrial machinery. Their compact design allows manufacturers to integrate these switches in places where larger components would not fit, while still ensuring that the user experience remains intuitive.

    Types of SMD Switches

    SMD switches come in various shapes and sizes to cater to different needs. Here are some of the most common types:

    1. Tactile SMD Switches

      These are the most common type of SMD switches. They provide a tactile feedback when pressed, often used in applications like keypads, remote controls, or any device requiring a user interface.

      2. Slide SMD Switches

      Slide switches have a sliding mechanism that allows the user to control a circuit in one or more positions. These are typically used in power circuits for devices like flashlights or even industrial machines.

      3. Push-button SMD Switches

      These switches work by pushing a button to open or close the circuit. They are commonly used in devices like phones, radios, and even toys.

      4. Rotary SMD Switches

      Similar to a knob, rotary switches allow users to adjust settings by rotating them. They are used in audio devices, light dimmers, and other gadgets where fine control is needed.

      5. SPST and SPDT SMD Switches

      Single Pole Single Throw (SPST) and Single Pole Double Throw (SPDT) switches are also popular SMD variants. SPST switches control a single circuit, while SPDT switches can toggle between two different states.

      Each of these types is designed for specific uses, making them essential components in various electronic applications. Their compact size ensures they can be used even in small devices without sacrificing functionality.

      Advantages & Disadvantages of SMD Switches

      Advantages:

      • Space Efficiency

      One of the most significant benefits of SMD switches is their compact size. They are perfect for devices where space is limited, allowing designers to fit more components into the same area.

      • Better Durability

      SMD switches are generally more durable than through-hole switches. Their design ensures they are less susceptible to mechanical damage, especially when mounted on a surface.

      • Automation in Manufacturing

      The ability to automate the placement and soldering of SMD switches makes them ideal for mass production. This reduces the cost of manufacturing and ensures consistent quality across batches.

      • Improved Aesthetics

      The small size of SMD switches often leads to sleeker, more polished product designs. For consumer electronics, this means thinner, more attractive devices.

      • Enhanced Performance

      SMD switches typically offer better performance due to their direct connection to the PCB. This reduces the risk of signal degradation, ensuring that the switch functions smoothly.

      Disadvantages:

      • Difficult to Replace

      SMD switches are challenging to replace or repair once they are soldered onto the PCB. If a switch fails, it may require desoldering, which can be tricky without the right tools.

      • Manual Handling

      Although automated systems place most SMD switches, some models might still require manual handling for specific applications, which could lead to additional costs or mistakes during production.

      • Potential for Heat Damage

      Since SMD switches are mounted directly on the surface of the PCB, excessive heat during soldering or operation can damage them. However, this is mitigated with proper temperature controls and cooling techniques during manufacturing.

      • Limited Space for Larger Switches

      While SMD switches are compact, they may not always offer enough space for larger or more robust components, especially for high-power applications.

      What is the Difference Between SMD Switch and Through-Hole Switch?

      The primary difference between SMD switches and through-hole switches lies in how they are mounted to the PCB. SMD switches are placed on the surface of the PCB and soldered into place, while through-hole switches have leads that go through holes drilled in the PCB and are then soldered on the opposite side.

      1. Size

        SMD switches are generally much smaller than through-hole switches. This makes SMD switches ideal for compact, portable devices like smartphones, wearables, and remote controls.

        2. Assembly

        Through-hole switches tend to require more manual labor to assemble and solder, while SMD switches can be placed quickly using automated machines, improving manufacturing efficiency.

        3. Durability

        SMD switches are often more robust, as they are less prone to damage from mechanical stress compared to through-hole versions, which can be more easily affected by physical impacts.

        4. Cost

        SMD switches are usually more cost-effective when produced in large quantities due to the automation involved. However, through-hole switches may be preferable in some situations where durability or reliability in harsh conditions is prioritized.

        When to Use an SMD Switch?

        SMD switches are a great choice when space is limited, or when the device is part of a larger, compact electronic assembly. They are commonly used in mobile phones, medical devices, audio equipment, and various consumer electronics. Additionally, SMD switches are perfect for use in situations where automated manufacturing processes are desired.

        You might choose an SMD switch for the following reasons:

        • Space Constraints: In devices where you need to minimize the size of the components, SMD switches provide an excellent solution.
        • High-Volume Production: If you are manufacturing in large quantities, SMD switches allow for faster assembly and lower costs.
        • Improved Aesthetics: Their small size and sleek design contribute to more modern, stylish products.
        • Durability and Reliability: For devices that need to withstand frequent use, SMD switches offer durability and a long lifespan.

        While through-hole switches might be better suited for certain high-power or high-precision applications, SMD switches are the go-to option for many modern electronics.

        SMD switches are a key component in modern electronic design, offering space efficiency, durability, and versatility. Whether you’re designing a smartphone, a home appliance, or a specialized piece of industrial equipment, choosing the right type of SMD switch can significantly impact the device’s performance and user experience. The compact nature of SMD switches allows manufacturers to create more functional, durable, and aesthetically pleasing products, while automated processes ensure cost-effective production.

        If you’re considering SMD switches for your next project, remember their benefits and challenges. Understanding when and how to use them effectively will help you create the best possible design. Contact us for more information about switches.

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        What Is a Capacitive Switch Keyboard?

        Posted on February 8, 2025 by Love Dome

        What Is a Capacitive Switch Keyboard?

        A capacitive switch keyboard operates using capacitive sensing technology to detect keypresses without the need for physical contact between moving parts. Unlike mechanical keyboards that rely on physical actuation, capacitive keyboards detect changes in electrical capacitance when a key is pressed. This design enhances durability, responsiveness, and typing comfort. Many professionals and gamers prefer capacitive keyboards because of their smooth operation, quick response, and longer lifespan compared to traditional mechanical keyboards.

        Capacitive keyboards are often designed with a consistent actuation force, providing a uniform typing experience. They also tend to have a lower risk of key bounce, resulting in accurate and fast key registration. Their construction allows for a sleek, lightweight design, making them popular in modern devices such as laptops, medical equipment, and touch-sensitive control panels.

        What Is a Capacitive Switch Keyboard?

        What Class Is Capacitive Switching?

        Capacitive switching falls under the category of contactless switch technologies. Unlike mechanical switches that rely on physical components making contact to complete a circuit, capacitive switches use variations in capacitance to trigger an action. These switches are commonly found in applications where reliability, longevity, and low maintenance are important.

        Capacitive switching technology is classified into several categories based on its application and sensing mechanism. Some of the most common types include:

        • Projected capacitive switches: Found in touch screens and modern interfaces, they allow multi-touch functionality and precise control.
        • Surface capacitive switches: Often used in industrial applications where durability and sensitivity to touch are critical.
        • Mutual capacitance switches: Suitable for keyboards and control panels, providing high accuracy and fast response times.

        These categories help industries select the appropriate capacitive switch based on their specific needs, ensuring optimal performance in different environments.

        What Is the Range of a Capacitive Switch?

        The detection range of a capacitive switch depends on several factors, including the design, application, and environmental conditions. In general, capacitive switches can detect touch or proximity within a range of a few millimeters to several centimeters. This flexibility makes them suitable for a wide variety of applications, from consumer electronics to industrial automation.

        For example, in capacitive keyboards, the detection range is carefully calibrated to ensure accurate keypress registration without accidental activation. In contrast, capacitive proximity switches used in industrial settings may have extended detection ranges to sense materials like liquids, plastics, or metals.

        Factors that influence the range of capacitive switches include:

        • Material of the object being detected: Conductive materials are detected more easily than non-conductive ones.
        • Environmental conditions: Humidity, temperature, and nearby electromagnetic interference can impact detection sensitivity.
        • Switch design: Some switches are tuned for high sensitivity, while others focus on precision within a shorter range.

        How Does a Capacitive Switch Work?

        A capacitive switch works by detecting changes in capacitance when an object, such as a human finger, comes close to its sensing area. The switch consists of two conductive layers separated by a dielectric material. When a conductive object approaches, it alters the electric field, causing a measurable change in capacitance. This change is processed by the internal circuitry and interpreted as an input action.

        The core components of a capacitive switch include:

        • Conductive plates: These create an electric field and sense changes in capacitance.
        • Dielectric layer: Provides insulation and determines sensitivity.
        • Controller circuit: Processes capacitance changes and triggers the desired response.

        Since capacitive switches do not rely on mechanical movement, they offer several advantages, such as:

        • Faster response times: Actions are registered almost instantly.
        • Minimal wear and tear: Absence of moving parts increases lifespan.
        • Improved reliability: Less prone to dust and debris interference.
        What Is a Capacitive Switch Keyboard?

        Capacitive switches are widely used in touch-sensitive devices, control panels, and interactive kiosks, providing users with a seamless and intuitive experience.

        What Is Capacitive Switch vs Mechanical Switch?

        Capacitive and mechanical switches differ in their working principles, durability, and overall user experience. While both are used in various applications, they each have distinct characteristics that suit different preferences and environments.

        Mechanical Switches:

        • Use physical components that make contact to complete a circuit.
        • Provide tactile feedback with an audible click.
        • Have moving parts that can wear out over time.
        • Require periodic maintenance and cleaning.
        • Common in gaming keyboards where tactile response is preferred.

        Capacitive Switches:

        • Detect changes in capacitance without physical contact.
        • Offer a smoother and quieter typing experience.
        • Are more durable due to the absence of moving parts.
        • Require minimal maintenance.
        • Ideal for modern devices that demand longevity and precision.

        While mechanical switches are often favored by those who prefer tactile feedback, capacitive switches are valued for their speed, longevity, and resistance to wear. Many industries, including healthcare and aerospace, opt for capacitive switches to achieve consistent performance in demanding environments.

        What Is a Capacitive Proximity Switch Used For?

        A capacitive proximity switch is widely used across multiple industries due to its ability to detect objects without direct contact. These switches are highly versatile and can sense materials such as glass, plastic, liquids, and even powders. This capability makes them essential in applications where traditional switches might fail due to environmental conditions. Key applications of capacitive proximity switches include:

        • Industrial automation: Used to detect the presence of materials on conveyor belts or within machinery, ensuring smooth production processes.
        • Medical equipment: Helps in non-contact sensing of fluids or medical instruments to maintain hygiene and precision.
        • Consumer electronics: Found in appliances and control panels to offer touch-based interfaces.
        • Food processing: Used to detect the presence of food items without contamination.

        FAQs

        1. Are capacitive switches more durable than mechanical ones?

        Yes, capacitive switches typically last longer because they do not have moving parts that wear out.

        • Do capacitive switches provide tactile feedback?

        Most capacitive switches do not offer tactile feedback, but some models include haptic feedback options.

        • Where are capacitive switches commonly used?

        They are used in consumer electronics, industrial machinery, and medical devices.

        • What materials can capacitive proximity switches detect?

        They can detect conductive and non-conductive materials, including glass, plastic, and liquids.

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