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To all customers and suppliers,
With reference to the current international health situation we confirm the normal activity of our company. There will be no delay in shipments and the workflow will remain as it has been.
We hope that you all are in good health and that the situation will be resolved as soon as possible.

UDP LAN Ethernet IP Eight Channels Relay Controller

Ethernet UDP controlled relay board.
  • Code: SS_UDP8REL_BOX
  • Manufacturer:
  • In stock: 868

Price: €66.00

UDP Relay
board is developed for software control.
control via Web Browser - Windows Explorer, Mozilla, Google Chrome...
we recommend WEB version:

KMTronic LTD


- 1x
LAN Eight Relay Controller
- 1x UTP Patch Cable 1 meter

- Each relay has an LED to indicate when it is operated.
- Relay outputs can be used to turn ON/OFF lights, motors and other devices.

Relays have Normally Open (NO) and
Normally Closed (NC) Contacts each capable of switching max:
- 12VDC/15A
- 24VDC/15A
- 125VAC/15A
- 250VAC/10A

Required power:
9 to 24V DC
Maximum current drawn by digital circuitry at 9V 500 mA
Maximum current drawn by digital circuitry at 12V 370 mA
Maximum current drawn by digital circuitry at 24V 200 mA


User Manual:
KMTronic Relay Controller Model UD8CR

IP address:
Webserver Port: 80 (for initial configuration with username/password)
Subnet Mask:
Default Gateway:
UDP Port: 12345
Username: admin
Password: admin

Reset to Default Settings:
Hold Reset button for 10 seconds

UDP Commands:

FF0000 - Status Read command (ASCII encoding)

FF0100 - Relay 1 OFF command (ASCII encoding)
FF0101 - Relay 1 ON command (ASCII encoding)

FF0200 - Relay 2 OFF command (ASCII encoding)
FF0201 - Relay 2 ON command (ASCII encoding)


FF0800 - Relay 8 OFF command (ASCII encoding)
FF0801 - Relay 8 ON command (ASCII encoding)

FFE000 - All relays OFF command (ASCII encoding)
FFE0FF - All relays ON command (ASCII encoding)

UDP Test Software example including source code (C#):

KMTronic UDP Test
KMTronic UDP Test Software Source


Zeno - Applicazioni per Android

 Create your own label, use your company name or logo

Software examples










Additonal information

  Payment accepted:
Credit Card payments, PayPal

Bank Wire Transfer

We ship WORLDWIDE through TNT.

  Import duties, taxes and charges are not included in the item price or shipping charges. These charges
are the buyer's responsibility. Please check with your country's customs office to determine what these additional
costs before you purchase.

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