Microduino Sensor Relay

The Microduino Sensor Relay is a compact relay module designed for isolated control of high-voltage, high-current devices. Operating at a 5V primary input, it can safely switch loads of up to 10A at 250VAC or 30VDC, making it ideal for controlling lights, fans, motors, pumps, and small appliances directly from a microcontroller.

The module features a clean white circuit board with a sealed blue relay and a sturdy 2-pin screw terminal block for secure output wiring. A "DANGER HIGH VOLTAGE" marking printed on the board serves as a clear safety warning when working with mains-powered loads. Connection is quick and solder-free through a 4-pin, 1.27mm-pitch connector, compatible with digital pins D2–D13 and analog pins A0–A7 on Microduino hubs and other Arduino-compatible boards.

• 5V input works with most microcontroller boards
• Switches up to 10A at 250VAC or 30VDC
• Electrical isolation protects low-voltage control circuitry
• Solder-free 4-pin connector for quick setup
• Screw terminals keep output wires firmly in place
• Small, lightweight design fits tight project enclosures
• Great for home automation, robotics, and STEM learning

Add the Microduino Sensor Relay to your parts bin and command powerful devices with nothing more than a simple digital signal.