Remote I/O Modules for Industrial Control and Monitoring

Explore our extensive range of industrial Remote I/O modules designed to bring reliable acquisition and control of digital, analog, and relay signals to your networked control systems. With support for Ethernet, serial, USB, wireless and fieldbus communication, our I/O solutions are trusted in manufacturing, energy, and automation environments worldwide.

Get in touch with our expert team today to discuss your I/O requirements and find the right solution for your application.

Enquire Now
Remote I/O Modules

Showing 120 of 218 Remote I/O items

Filter your results
Clear Filters
  • Availability
  • Manufacturer
  • Bus
  • Protocol
  • I/O Type
520M-OEM
Sealevel 520M-OEM
RS-485 Modbus RTU to 8 Isolated Digital Input/8 High Current Form C Relay Output OEM Board
£266.50
520E-OEM
Sealevel 520E-OEM
Ethernet Modbus TCP to 8 Isolated Digital Input/8 High Current Form C Relay Output OEM Board
£340.50
463W
Sealevel 463W
Wireless 802.11b/g Modbus TCP to 96 Channel TTL Digital I/O Adapter
£329.00
463S
Sealevel 463S
RS-232 Modbus RTU to 96 Channel TTL Digital I/O Adapter
£283.00
463S-OEM
Sealevel 463S-OEM
RS-232 Modbus RTU to 96 Channel TTL Digital I/O OEM Board
£257.50
463N
Sealevel 463N
96 Channel TTL Digital Interface SeaI/O Expansion Module
£281.00
463M
Sealevel 463M
RS-485 Modbus RTU to 96 Channel TTL Digital I/O Adapter
£264.50
463M-OEM
Sealevel 463M-OEM
RS-485 Modbus RTU to 96 Channel TTL Digital I/O OEM Board
£239.00
463E
Sealevel 463E
Ethernet Modbus TCP to 96 Channel TTL Digital I/O Adapter
£358.00
463E-OEM
Sealevel 463E-OEM
Ethernet Modbus TCP to 96 Channel TTL Digital I/O OEM Board
£332.00
462W
Sealevel 462W
Wireless 802.11b/g Modbus TCP to 96 Channel TTL DB78F Digital I/O Adapter
£366.00
462S-OEM
Sealevel 462S-OEM
RS-232 Modbus RTU to 96 Channel TTL DB78F Digital I/O OEM Board
£340.50
462S
Sealevel 462S
RS-232 Modbus RTU to 96 Channel TTL DB78F Digital I/O Adapter
£368.00
462N
Sealevel 462N
96 Channel TTL DB78 Digital Interface SeaI/O Expansion Module
£313.50
462M-OEM
Sealevel 462M-OEM
RS-485 Modbus RTU to 96 Channel TTL DB78F Digital I/O OEM Board
462M
Sealevel 462M
RS-485 Modbus RTU to 96 Channel TTL DB78F Digital I/O Adapter
£324.00
462E-OEM
Sealevel 462E-OEM
Ethernet Modbus TCP to 96 Channel TTL DB78F Digital I/O OEM Board
£383.50
462E
Sealevel 462E
Ethernet Modbus TCP to 96 Channel TTL DB78F Digital I/O Adapter
£409.00
450W
Sealevel 450W
Wireless 802.11b/g Modbus TCP to 16 Form C Relay Output Adapter
£378.00
450S
Sealevel 450S
RS-232 Modbus RTU to 16 Form C Relay Output Adapter
£280.00
450S-OEM
Sealevel 450S-OEM
RS-232 Modbus RTU to 16 Form C Relay Output OEM Board
£266.50
450N
Sealevel 450N
16 Form C Relay Output SeaI/O Expansion Module
£266.50
450M
Sealevel 450M
RS-485 Modbus RTU to 16 Form C Relay Output Adapter
£280.00
450M-OEM
Sealevel 450M-OEM
RS-485 Modbus RTU to 16 Form C Relay Output OEM Board
£266.50
450E
Sealevel 450E
Ethernet Modbus TCP to 16 Form C Relay Output Adapter
£353.50
450E-OEM
Sealevel 450E-OEM
Ethernet Modbus TCP to 16 Form C Relay Output OEM Board
£340.50
440W
Sealevel 440W
Wireless 802.11b/g Modbus TCP to 32 Reed Relay Output Adapter
£403.00
430E
Sealevel 430E
Ethernet Modbus TCP to 32 Isolated Digital Input Adapter
£304.50
430E-OEM
Sealevel 430E-OEM
Ethernet Modbus TCP to 32 Isolated Digital Input OEM Board
420W
Sealevel 420W
Wireless 802.11b/g Modbus TCP to 16 Isolated Digital Input/8 Form C Relay Output Adapter
£366.00
420S
Sealevel 420S
RS-232 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter
£266.50
420S-OEM
Sealevel 420S-OEM
RS-232 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output OEM Board
£254.50
420N
Sealevel 420N
16 Optically Isolated Digital Input/8 Form C Relay Output SeaI/O Expansion Module
£266.50
420M
Sealevel 420M
RS-485 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter
£266.50
420M-OEM
Sealevel 420M-OEM
RS-485 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output OEM Board
£254.50
420E
Sealevel 420E
Ethernet Modbus TCP to 16 Isolated Digital Input/8 Form C Relay Output Adapter
£340.50
420E-OEM
Sealevel 420E-OEM
Ethernet Modbus TCP to 16 Isolated Digital Input/8 Form C Relay Output OEM Board
£329.00
410W
Sealevel 410W
Wireless 802.11b/g Modbus TCP to 16 Isolated Digital Input/16 Reed Relay Output Adapter
£353.50
410S
Sealevel 410S
RS-232 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output Adapter
£254.50
410S-OEM
Sealevel 410S-OEM
RS-232 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output OEM Board
£242.00
410N
Sealevel 410N
16 Optically Isolated Digital Input/16 Reed Relay Output SeaI/O Expansion Module
£254.50
410M
Sealevel 410M
RS-485 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output Adapter
£254.50
410M-OEM
Sealevel 410M-OEM
RS-485 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output OEM Board
£242.00
410E
Sealevel 410E
Ethernet Modbus TCP to 16 Isolated Digital Input/16 Reed Relay Output Adapter
£329.00
410E-OEM
Sealevel 410E-OEM
Ethernet Modbus TCP to 16 Isolated Digital Input/16 Reed Relay Output OEM Board
£316.00
440S
Sealevel 440S
RS-232 Modbus RTU to 32 Reed Relay Output Adapter
£304.50
440S-OEM
Sealevel 440S-OEM
RS-232 Modbus RTU to 32 Reed Relay Output OEM Board
£291.00
440N
Sealevel 440N
32 Reed Relay Output SeaI/O Expansion Module – board only
£291.00
440M
Sealevel 440M
RS-485 Modbus RTU to 32 Reed Relay Output Adapter
£304.50
440M-OEM
Sealevel 440M-OEM
RS-485 Modbus RTU to 32 Reed Relay Output OEM Board
£291.00
440E
Sealevel 440E
Ethernet Modbus TCP to 32 Reed Relay Output Adapter
£378.00
440E-OEM
Sealevel 440E-OEM
Ethernet Modbus TCP to 32 Reed Relay Output OEM Board
£366.00
430W
Sealevel 430W
Wireless 802.11b/g Modbus TCP to 32 Isolated Digital Input Adapter
£329.00
430S
Sealevel 430S
RS-232 Modbus RTU to 32 Isolated Digital Input Adapter
£230.00
430S-OEM
Sealevel 430S-OEM
RS-232 Modbus RTU to 32 Isolated Digital Input OEM Board
£217.50
430N
Sealevel 430N
32 Optically Isolated Digital Input SeaI/O Expansion Module
£230.00
430M
Sealevel 430M
RS-232 Modbus RTU to 32 Isolated Digital Input Adapter
£230.00
430M-OEM
Sealevel 430M-OEM
RS-232 Modbus RTU to 32 Isolated Digital Input OEM Board
EDAM-9017
1 in stock
Inlog EDAM-9017
Ethernet to 8-ch Isolated Analog Input / 2-ch Digital Output Module
EDAM-5019
5 in stock
Inlog EDAM-5019
USB/Serial/Ethernet to 16-ch Thermocouple Input/2-ch Digital Input – 1-ch Digital Output Module
Load More

Showing 120 of 218

How Do Remote I/O Modules Improve System Design?
They let signals from sensors and actuators be collected close to the source and transmitted digitally over standard networks. This reduces long analogue cable runs, cutting installation costs and minimising noise interference.

What Factors Affect Performance?
Response time, update rate and supported protocols all play a role. Some modules buffer data to cope with network congestion, while others provide time synchronisation to keep multi-point systems aligned.

Why Choose an Industrial Supplier in the UK?
We provide a full portfolio of Remote I/O types with lifecycle support. UK-based technical help ensures engineers can specify the right models for integration, reducing delays during commissioning.