This Modbus RTU 2 Channel 12V Relay Board
Imagine seamlessly controlling two high-precision relays with this powerful relay output board. Featuring a vibrant green PCB, this module combines modern style with durability. Its compact size of 8.3 x 4.4 x 1.6 cm makes integration easy into any project. The dual RS485 and TTL communication interfaces ensure reliable data transfer. Two optocoupler-isolated input channels and two output channels provide enhanced safety and performance, while LED indicators and a user button allow for simple manual operation. Crafted with an STM32F030F4 microcontroller, this device guarantees low power consumption and high responsiveness. Ideal for automation, remote control, and industrial applications, this relay board delivers precise control and long-term reliability.
Keys features of this Modbus RTU 2 Channel 12V Relay Board
- This 2-channel relay board operates on 12V DC with built-in RS485 and TTL interfaces, ensuring flexible and robust communication for automation and control projects.
- Equipped with two optocoupler-isolated input channels and two output channels, providing enhanced electrical safety and noise immunity for sensitive systems.
- The compact design measures 8.3 x 4.4 x 1.6 cm, making installation simple in confined spaces and portable for various industrial or hobbyist setups.
- The onboard STM32F030F4 microcontroller manages high-precision operations with minimal power, suitable for low-power, energy-efficient applications.
- Features include two relay status LEDs, a user button, a power indicator, and clear labeling, enabling intuitive manual control and real-time status monitoring.
- Powered via a 12V power supply, with dissipated power optimized for long-term durability and stable operation in diverse environments.
This relay board is perfect—move into your project today!
Enhance your automation systems with this reliable, multifunctional relay board. Whether you're designing industrial controls or smart home automation, this module offers precise switching, easy communication, and durable construction. Its compact size and user-friendly features make it an excellent choice for both professionals and hobbyists. Add this module to your toolkit and experience seamless control and dependable performance—your projects deserve the best in technology.















