Multi-Channel Relay Module | 5V-24V DC | Optocoupler Isolated | Arduino & Raspberry Pi Compatible

Take complete control of high-voltage or high-current circuits with this versatile multi-channel relay module. Designed for 5V, 12V, or 24V DC operation, it provides reliable isolation between your microcontroller and external devices. The optocoupler protection and dual trigger modes ensure safe, stable switching for demanding automation and control projects. Features and Benefits - Optocoupler Isolation - Protects your sensitive Arduino or Raspberry Pi from voltage spikes and electrical noise on the load side - High and Low Level Trigger - Offers flexible control compatibility with a wide range of microcontrollers and digital logic circuits - Multi-Channel Options (1 to 8) - Scale your project from simple on/off control to complex multi-device automation systems - Wide Operating Voltage (5V-24V DC) - Powers directly from common microcontroller boards or external supplies for maximum flexibility - Screw Terminal Connections - Enables secure, reliable wiring for both control signals and high-power load circuits - Transparent Cover - Allows for quick visual confirmation of relay status during prototyping and operation Applications - Home Automation Systems - Control lights, fans, or appliances remotely using microcontroller-based schedules or sensors - Industrial Prototyping - Interface PLCs or microcontrollers with motors, solenoids, and other industrial actuators safely - DIY Electronics Projects - Build custom controllers for aquariums, greenhouses, or model railroads with reliable switching - Security and Safety Systems - Activate alarms, sirens, or emergency lighting based on sensor inputs from motion or door contacts