The 12V 1-Channel Modbus RTU Relay Module RS485 is an industrial-grade relay control board designed for reliable remote switching using the Modbus RTU protocol over RS485 communication. Built for robust performance, this module features optocoupler isolation, ensuring protection for your microcontroller and control circuits from electrical noise and high-voltage interference. This modbus relay module rs485 allows you to control electrical loads remotely via Arduino, PLCs, industrial controllers, or other microcontrollers, making it ideal for automation systems, smart control applications, industrial equipment, and IoT projects. With a 12V operating voltage and durable relay output, it can control devices such as lights, motors, pumps, and appliances. The onboard RS485 interface ensures long-distance and stable communication, even in noisy environments. Perfect for industrial automation, home automation, remote switching systems, and embedded control projects, this module offers a reliable and easy-to-integrate solution. Features: 1-channel relay module with Modbus RTU protocol RS485 communication interface for long-distance control Built-in optocoupler isolation for enhanced safety 12V operating voltage Supports control via Arduino, PLC, and MCU systems Reliable switching for AC/DC loads High noise immunity for industrial environments Compact and easy to install design Ideal for automation, IoT, and industrial control applications Specifications: Communication Protocol: Modbus RTU Interface: RS485 Channels: 1 Operating Voltage: 12V DC Isolation: Optocoupler Isolation Relay Type: Electromechanical Relay Control Method: Serial Communication (RS485) Load Capacity: Typically up to 10A (depends on relay) Application: Industrial Automation / Remote Switching Package Includes: 1 × 12V 1-Channel Modbus RTU RS485 Relay Module