Demeras
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The Module Relay Board uses the Best-Performing UPC1237 as the core Device, with Start-up delay, DC Protection, Using OMRIN Original high-Current Relay as the core Device
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The Module Relay Board uses the Best-Performing UPC1237 as the core Device, with Start-up delay, DC Protection, Using OMRIN Original high-Current Relay as the core Device
EXCELLENT PERFORMANCE: The modular relay board uses the best-performing UPC1237 as the core device, with start-up delay, DC protection, power failure and impact resistance.
The Module Relay Board uses the Best-Performing UPC1237 as the core Device, with Start-up delay, DC Protection, Using OMRIN Original high-Current Relay as the core Device
Item #: 41326164

The Module Relay Board uses the Best-Performing UPC1237 as the core Device, with Start-up delay, DC Protection, Using OMRIN Original high-Current

Item #: 41326164

AED 102

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*All items will import from US

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    EXCELLENT PERFORMANCE: The modular relay board uses the best-performing UPC1237 as the core device, with start-up delay, DC protection, power failure and impact resistance.
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    What Stands Out

    High Precision
    The Demeras speaker relay module is designed with high precision, ensuring reliable performance and minimizing distortion, making it ideal for audiophiles and professional sound engineers.
    Durable Construction
    Built on a double-sided tinned circuit board, this module offers enhanced durability and resistance to oxidation, ensuring long-lasting functionality in demanding environments.
    Wide Voltage Range
    Compatible with 12-24V systems, this relay module provides flexibility and versatility for various audio setups, catering to both casual users and advanced sound systems.

    Product Details

    Shop the best quality Relay Module Board with UPC1237 Speaker Protection. High-Precision CNC Double-Sided Tinned Circuit Board for 12-24V. Available at Ubuy UAE.
    Connector TypeScrew Terminal
    Contact TypeNormally Open
    Mounting TypePCB Mount
    Operation ModeAutomatic
    Coil Voltage24 Volts
    Maximum Switching Voltage24 Volts
    Minimum Switching Voltage12 Volts (AC)
    Number of Terminals3
    Contact MaterialSilver
    Brand NameDemeras
    Part NumberDemerasd3evop1m9b
    ModelDemerasd3evop1m9b
    Unit Count1 Count
    ManufacturerDemeras
    BrandDemeras
    Item Weight0.5 lbs (230 grams)

    Who Should Buy?

    Suitable For
    • Audio Enthusiasts

      Ideal for users wanting high-quality sound systems with precise relay control and sound quality enhancement.

    • DIY Electronics Makers

      Perfect for hobbyists constructing custom audio devices or projects needing reliable relay components and circuitry.

    • Professional Installers

      Best suited for technicians working on comprehensive audio setups requiring durable and precise relay modules for performance.

    Not Suitable For
    • Casual Users

      May not suit casual users needing simple audio setups without the complexities of relay integration.

    Product Description

    The Module Relay Board uses the Best-Performing UPC1237 as the core Device, with Start-up delay, DC Protection, Using OMRIN Original high-Current Relay as the core Device

    Have any Query? Chat with us

    Customer Questions & Answers

    • Question: What is the Demeras 7812UPC1237 Speaker Relay Module?

      Answer: The Demeras 7812UPC1237 Speaker Relay Module is an electronic component designed to control audio systems, providing high-precision sound relay functionalities. It operates within a voltage range of 12-24V, making it suitable for various audio applications. This module features a double-sided tinned circuit board designed through CNC processes, ensuring high durability and reliability. It's widely used by hobbyists and professionals for enhancing sound systems, automating sound operations in vehicles, or integrating into custom audio solutions.
    • Question: What applications can I use the Speaker Relay Module for?

      Answer: The Demeras Speaker Relay Module is highly versatile, suitable for applications such as home theater systems, automotive audio modifications, or DIY electronics projects. It can be employed in switching audio signals without distortion, ensuring high-quality sound output. For instance, if you're building a custom audio system, this relay module allows you to manage multiple speakers or audio devices effectively, ensuring seamless operation and optimal sound performance.
    • Question: What are the advantages of using a CNC double-sided circuit board?

      Answer: CNC double-sided circuit boards, like the one used in the Demeras Speaker Relay Module, offer enhanced durability and improved electrical performance. The double-sided design allows for more complex circuits and efficient space usage, while CNC manufacturing ensures precise cuts and placements. This results in better heat dissipation and robust connections, which are crucial for high-performance electronic components, especially in audio applications where clarity and fidelity are paramount.
    • Question: How do I connect the Demeras Speaker Relay Module to my audio system?

      Answer: Connecting the Demeras 7812UPC1237 Speaker Relay Module involves linking the input terminals to your audio source and the output terminals to your speakers. Typically, you'll need to connect the power supply to provide the required 12-24V. Make sure to follow the wiring diagrams provided in the product documentation for optimal setup. This module can be used to link your radio, amplifier, or other audio devices, providing a controlled mechanism to switch audio pathways without signal loss.
    • Question: Is the module suitable for beginners in electronics?

      Answer: Yes, the Demeras Speaker Relay Module is suitable for beginners due to its straightforward design and user-friendly functionality. It is often recommended for electronics enthusiasts engaged in DIY audio projects. With some basic knowledge of electrical components and circuit connections, users can easily integrate this module into their systems, making it an ideal learning tool or starter component for those new to electronics and audio systems.
    • Question: What are the specifications of the Demeras Speaker Relay Module?

      Answer: The Demeras 7812UPC1237 Speaker Relay Module operates within a voltage range of 12-24V and can handle high-precision audio signal relaying. The circuit board is made using CNC technology, ensuring robustness and reliability. Its design typically includes input and output terminals for seamless audio connection, with specifications allowing it to integrate easily into various audio setups. Understanding these specifications helps users match the module's capabilities with their specific audio project requirements.
    • Question: Can the module be used with different audio sources?

      Answer: Absolutely, the Demeras Speaker Relay Module can be used with a variety of audio sources, including amplifiers, radios, and computer audio outputs. Its universal compatibility allows users to connect different devices while ensuring consistent audio performance. Whether you're using it for a home theater system or integrating it into a vehicle, this module effectively routes sound from any source, enhancing the overall listening experience. Just ensure that the input and output levels are compatible for best results.
    • Question: What safety measures should I take when using this module?

      Answer: When using the Demeras 7812UPC1237 Speaker Relay Module, it's essential to ensure proper voltage levels are maintained to avoid damage. Additionally, make sure all connections are secure to prevent shorts and disruptions. Using insulated tools while working on the module can be beneficial. In audio applications, maintaining a clean power supply will help in safeguarding against noise interference, ensuring that your audio output remains clear and unhindered, which is critical for high-fidelity sound.
    • Question: What is the best way to troubleshoot issues with the module?

      Answer: To troubleshoot issues with the Demeras Speaker Relay Module, start by checking all connections for secure and correct placement. Ensure the power supply is within the required voltage range. If there is no audio output, verify the audio source and its compatibility with the module. If problems persist, reviewing the module's specifications against your audio system setup may reveal discrepancies. Keeping a systematic approach will help in identifying and resolving issues more efficiently.
    • Question: Where can I buy the Demeras 7812UPC1237 Speaker Relay Module in UAE?

      Answer: You can buy the Demeras 7812UPC1237 Speaker Relay Module at Ubuy. They offer a reliable platform for purchasing this product, ensuring you receive quality components for your audio projects. Ubuy provides a variety of electronics components, making it a go-to option for enthusiasts and professionals alike looking to enhance their audio systems or undertake electronics projects.

    Demeras Electromechanical Relays Editorial Review

    The Relay Module Board 7812+UPC1237 Speaker Protection Relay Module Board 12-24V is a high-quality PCB with a well-laid-out design and good quality Omron relays. The input voltage limit on the 7812 regulator used is 35vdc, and the minimum input voltage is 14.5vdc. The module will work with any class of amplifier and can eliminate speaker thump when powering off the amplifier. However, be aware that the three capacitors labeled 100uf-10uf-100uf need to be changed to those values to provide enough delay. The correct values provide a 2-second delay. Nevertheless, some customers have noted that the unit does not have any turn-on delay because the capacitor values actually deviate from what is printed on the circuit board. Therefore, replacing the 3 black caps in the center of the board from 47,15,47 to the proper 100,50,100 provides a 2-second delay and removes the turn-on transient.

    Customer Reviews & Ratings

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    Pros

    • High-quality PCB with well-laid-out design
    • Good quality Omron relays
    • Works with any class of amplifier
    • Can eliminate speaker thump when powering off the amplifier

    Cons

    • Capacitor values deviate from what is printed on the circuit board, resulting in a lack of turn-on delay

    Platform Trust & Buyer Confidence

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    4.1/5 153 reviews
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    Haitham
    Verified buyer

    “Excellent experience”

    11 June 2026 · via Trustpilot
    RF
    Rasanga
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    “I had an excellent experience with Ubuy UAE. I ordered a product from the USA, and the website clearly mentioned that deliveries might be delayed due to the current situation in the Middle East. Ubuy provided great value, transparent communication, and reliable delivery. Thank you, Ubuy UAE, for a fantastic shopping experience!”

    17 June 2026 · via Trustpilot
    SC
    Simon
    Verified buyer

    “On time delivery and great product at a really great price!”

    8 April 2026 · via Trustpilot
    V
    Vladislav
    Verified buyer

    “Fast delivery. Quality as expected.”

    03-Jul-26 · via Trustpilot
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    Hope
    Verified buyer

    “Excellent experience! The service was top-notch, reliable, and very fast. I am completely satisfied with their professionalism and highly recommend Ubuy UAE to everyone.”

    02-Jul-26 · via Trustpilot
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    AED 102

    Order now and get it around Saturday, August 22

    QTY:

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    Features & Benefits

    • Best-performing UPC1237 ensures excellent performance.
    • Features start-up delay and DC protection for safety.
    • Wide power supply range from AC12V to AC24V.
    • Designed with a high-precision CNC double-sided circuit board.
    • Compact size allows for easy installation without complicated setup.
    • Reliable customer service for any inquiries or issues.

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