Product Description: Adjustable GPIO Relay Module with Optocoupler PCB Unlock the potential of your electronic projects with the Adjustable GPIO Relay Module. This versatile 4-channel relay board is designed for high and low-level control, making it an essential component for automation and control applications. Discover the features that set this relay module apart and enhance your circuit designs. 1. With Optocoupler Isolation This relay module features optocoupler isolation, providing enhanced electrical separation for your control circuits. This isolation protects sensitive components from voltage spikes and noise, ensuring reliable operation and longevity of your devices. 2. Overcurrent Protection Safety is paramount in any electrical project. The integrated overcurrent protection safeguards your circuit and connected devices from potential electrical risks. This feature gives you peace of mind, allowing you to focus on your project without worrying about damaging your components. 3. Flexible High Low Control The GPIO relay module offers flexible high and low-level control options. Easily switch between different voltage levels as needed, making it adaptable for various applications. This flexibility allows you to customize your control strategy to suit your specific requirements. 4. Automation Enhancement Designed for automation control circuits, this GPIO relay module enables precise and efficient control over electrical outputs. Whether you're automating home appliances, industrial equipment, or DIY projects, this module enhances your ability to manage multiple devices seamlessly. 5. Multifaceted Utilization Equipped with a relay common terminal, a normally open terminal, and a normally closed terminal, this module operates as an electronic switch. Its multifaceted design allows for a wide range of applications in voltage and current control configurations, making it suitable for both hobbyists and professionals. Elevate your projects with the Adjustable GPIO Relay Module with Optocoupler PCB. Its robust features and flexible design make it an ideal choice for anyone looking to enhance their automation capabilities. Order yours today and take the first step towards smarter control solutions!