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4822 Sterling Court
Boulder, CO, 80301


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Robotic and automation sensors for 1D laser rangefinders (LIDAR), 2D scanning lasers or LIDARs, 3D time-of-flight cameras, digital compasses, programmable USB hub, programmable ethernet controlled relays, programmable USB controlled relays.

Devantech ETH002 Ethernet - 2 x 16A relay module

Devantech ETH002 Ethernet - 2 x 16A relay module R373.jpg
Devantech ETH002 Ethernet - 2 x 16A relay module R373.jpg

Devantech ETH002 Ethernet - 2 x 16A relay module


The Devantech ETH002 Ethernet relay board provides two voltage-free contact relay outputs with a current rating of up to 16A each.

SKU # R373-ETH002

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The Devantech ETH002 Ethernet module is powered from a 12VDC supply which can be regulated or unregulated. The DC input jack is 2.1mm with positive core polarity.  DC supplies are required to supply at least 500mA at 12VDC. The relays are SPCO (Single Pole Change Over) types. The normally open, normally closed and common pins are all available on the screw terminals. The ETH002 is fully compatible with the ETH-RLY02 and includes the legacy ETH-RLY02 command set.  

Devantech offers a precision case for the ETH002, it can be purchased here.  

The ETH002 has additional features over the ETH-RLY02:

  • Full Factory Reset, all ETH002 firmware and settings can be reset to the original state.
  • Firmware updates, firmware in the ETH002 is fully updatable by re-flashing the board with our custom windows program. This will be made available in the event of feature updates.
  • New Command Format, the new command format allows for consistent compatibility with future boards. New commands now allow for pulsed control of relays from 100ms to 25.5 seconds
  • TCP/IP Password Protection, it is now possible to set a password for TCP/IP protection. This is independent of the configuration password. 


Technical Documentation



Power12VDC adapter, >500mA (not included)

DC Plug TypeType A: 5.5mm OD, 2.1mm ID (IEC 60130-10:1971)

Configuration & Test InterfaceHTTP (webpage)

Control InterfaceTCP/IP over Ethernet

Relay CurrentUp to 16A @ 24VDC or 250VAC

ConnectionsScrew Terminals for N/O, N/C and common contacts