1 Channel 12V Relay Module with Optocoupler Support High and Low Trigger

SKU: VM00813

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A relay is a type of switch that can be controlled with an electrical signal. It is a way to open or close a circuit in this case via a signal from the connected microcontroller. The relay isolates the circuit on the device you want to control from the device that's controlling it.

This relay can be logically controlled with a 12V device. It is equipped with a optocoupler to safely separate high-voltage and low-voltage components.

Technical Specification:

  • Triggering current: 5mA
  • Working voltage: 12V
  • Size: 50mm*26mm*18.5mm ( L*W*H )


  • Fault-tolerant design , even if the control line is broken , the relay will not operate
  • Interface design humane, all interfaces can be connected directly via terminal wiring leads, very convenient
  • The module can be set to high or low triggered by jumper


  • Sprinkler systems
  • Turn on/off systems
  • Door opener systems

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