Best Io Modules Deals Online in the UK (10 Deals Found)

Last Updated - 01/04/2026 Sort By:

Best Choice
frient

New
frient IO Module | Input/Output Module | Smart Home Connectivity Module | Smart Home Interface for Wired Devices | Zigbe
Connect your wired devices to your smart home and start controlling them remotely.

£46.95
Waveshare

New
Waveshare Compute Module 5 IO Board, Compatible with All Variants of Raspberry Pi CM5, with PoE Feature, Bundle with PoE
Standard CM5 socket and Raspberry Pi 40PIN GPIO header suitable for all variants of Compute Module 5

£58.99
Waveshare

Used
Waveshare Compute Module 5 IO Board, Compatible with All Variants of Raspberry Pi CM5, with PoE Feature, Bundle with PoE
Standard CM5 socket and Raspberry Pi 40PIN GPIO header suitable for all variants of Compute Module 5

£41.29
Victron Energy

New
Victron Energy GX IO-Extender 150 - USB Control & Monitoring Expansion Module - Plug-and-Play Monitoring Module
8 CONFIGURABLE DIGITAL I/OS: Easily monitor additional sensors like float switches, temperature probes, or tank level in

£112.40
Best Value
Geroosaty

New
Geroosaty DC 12V 24V 16 in 16 Out RS485 Remote Switch PLC IO Expansion Board Modbus RTU Multifunctional Convenience Modu
Application: Plc Io Expansion Board, Smart Home, Home Automation, Smart Home; Ptc Camera, Security Monitoring, Identific

£20.22 £21.55
Waveshare

New
Waveshare Compute Module 5 IO Board, Compatible with All Variants of Raspberry Pi CM5, with PoE Feature, Single Board On
Standard CM5 socket and Raspberry Pi 40PIN GPIO header, suitable for all variants of Compute Module 5

£39.99
Youmile

Used
Youmile 2 pcs PCF8575 IO Expander Board Module I2C to 16IO Module I/O Extension Shield Module 16 bit SMBus I/O Ports wit
【Parameters】: Working voltage: 2.5 - 5.5VDC; Working current: 100mA(MAX); I2C address: 0x20(default), can be modified by

£4.13
Hailege

New
Hailege TTP223B Capacitive Touch Switch Module Sensor DC 2~5.5V for Arduino Raspberry Pi
This is the "momentary" variety of the touch sensor - touch and it turns on, release and it turns off.

£6.69
Create idea

New
Create idea 16-ch IO Expansion Pin Module Board I2C Interface IIC Input Output MCP23017-E/SS for Computer Game Console
It is suitable for computer peripherals, game console control, smart home, sensor management, motor control, LED matrix

£9.99
DollaTek

New
DollaTek 3Pcs PCF8574 IO Expansion Board I/O Expander I2C-Bus Evaluation Development Module
Standard interface that can be expanded in a variety of development boards

£3.99

10 Io Modules deals are available from: Amazon stores, starting from £3.99.
The biggest discount we found is 6% on Geroosaty DC 12V 24V 16 in 16 Out RS485 Remote Switch PLC IO Expansion Board Modbus RTU Multifunctional Convenience Module Easy to Use at Amazon.
The lowest price we found is £3.99 while the highest is £112.40.
Prices for the best Io Modules deals average at £34.46.
Last updated on April 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Io Modules.