Relay 1 Channel Module Board 5V With Optocoupler (Active Low )

AED 9.95



The KY-019 5V One Channel Relay Module Board is user-friendly electronic board for various applications, providing a reliable solution for controlling high-powered devices. The module is equipped with features that make it suitable for use as a temperature controller development board and for home appliance control.



  • Working Voltage: 5V
  • Pull-In Current: Approximately 70mA per channel
  • Relay Status Indicator: The module features a relay status indicator, providing visual feedback on the relay's operational status.



  • The module can be used as a temperature controller development board, making it suitable for projects involving temperature regulation.
  • It can also function as a home appliance control, enabling users to automate and control household devices.


Test Instruction:

  • The module is designed with a simple 3-wire structure for each output group, facilitating easy integration into various projects.
  • It includes six reserved output terminals, adding to its versatility and allowing users to connect multiple devices or components.
  • The input and output of the module are electrically isolated, ensuring safety during operation.
  • To activate the relay, supply the correct voltage and connect a high level to the input pin (e.g., short circuit with VCC).
  • To deactivate the relay, disconnect or connect to a low level (e.g., short circuit with GND).



Package Includes:

  • 1 x KY-019 5V Relay Module Board