Two Channel 24V Relay Module With Isolated Optocouplers For High And Low Level Trigger Plug And Play DIY Automation Board 2 Pack Durable Relay Card For Arduino Raspberry Pi And Home Wiring

Two-Channel 24V Relay Module with Isolated Optocouplers
✔️ 2-pack, 24V coil, opto-isolated, high/low trigger, plug-and-play

Compact, two-channel 24V relay board designed for hobbyist automation. It’s commonly used with Arduino, Raspberry Pi, and home wiring projects to switch loads safely from a low-voltage control signal.

✅ Maximum load: AC 250V / 30A, DC 30V / 30A
✅ Voltage options: 5V, 9V, 12V, 24V supply
✅ Trigger mode: high/low selectable via jumper
✅ Fault-tolerant design prevents relay energizing if control line fails
✅ Direct terminal hookup: IN1/IN2, COM/NO/NC terminals, four mounting holes

💡 What is a relay module with isolated optocouplers used for in hobby automation?

It lets you safely drive higher voltage devices from a low-voltage controller while keeping signal and load grounds separate.

- Hands-free control of mains or DC loads from microcontrollers - Protects the controller from voltage spikes and ground noise - Supports high and low level triggering for flexible wiring - Ideal for Arduino, Raspberry Pi, and DIY home-wiring projects✝️