4-Channel 5V Relay Module

[4 RELAY CHANNELS]: Control 4 devices simultaneously—ideal for home automation, industrial control, robotics, and DIY projects. [5V DC OPERATING VOLTAGE]: Compatible with 5V microcontrollers like Arduino, Raspberry Pi, ESP32, and other control systems. [HIGH & LOW LEVEL TRIGGER]: Supports both trigger modes for flexible integration with various sensors and automation systems. [OPTICAL ISOLATION & PROTECTION]: Built-in optocouplers protect your control circuits and ensure safe, reliable operation. [EASY INSTALLATION & MONITORING]: Screw terminals and status LEDs on each channel make wiring easy and provide real-time relay feedback.