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Velleman 4-Channel Ethernet Relay CardVelleman Kits

Velleman 4-Channel Ethernet Relay Card

Specification Features:

  • Outputs: 4 no relay outputs (30 VAC/DC 5 A rated)
  • Ethernet: 100 Mbit
  • Inputs:
    • 4 digital inputs (open collector compatible)
    • 1 analog input (6 V max.)
  • Ports:
    • UART port avaiable
    • SPI port available


Read the fully Illustrated Manual for VM204

PDF Download

Power Supply

5Vdc (500mA) via USB B connector







VM204 is an Ethernet controlled board with 4 relay outputs, 4 digital inputs and 1 analogue input.
It can send e-mail notifications when the status of an input changes and features an embedded webserver. Free apps are available for Android® and iOS®.
Additional software to up grade and improve this product, and App is now available from the Velleman support section on there website.
Order Code Each 
VM204Velleman 4-Channel Ethernet Relay Card59.99 


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