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Keyestudio 4 channel 5V Relay Shield module for Arduino UNO R3

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The keyestudio relay shield has integrated a 4-channel 5V relay module, which is fully compatible with UNO R3 control board. The 4-channel relay on the shield is active at HIGH level. Separately connect the 4-channel relay to the digital port 4, 5, 6, 7 on the UNO R3 board, then through controlling output HIGH or LOW to control the relay on and off.



  • The relay shield is 5V active HIGH

  • Contact capacity: AC120V / 3A ; DC24V/3A

  • Onboard LED indicator for relay output status

  • Indicator: 4 LEDs are red when the relay is driven high, the corresponding indicator will light up.

  • Standard interface can be directly connected with microcontrollers.

  • Fully compatible with UNO R3 board

  • Be able to control various appliances and other equipment with large current.

  • 3 M3 screw positioning holes for easy installation

  • Power Interface: 5V DC power interface

  • Channel: 4 channel

  • PCB Color: Black

  • Size: 69mm*54mm*26mm

  • Weight: 39.4g

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