Expansion Remote I/O Modules

Easily scale your industrial control system with our expansion remote I/O modules, engineered for flexible integration across a wide range of automation environments. Our modules offer rugged performance and modular connectivity, available in analog, digital, and mixed-signal configurations

We have been supplying remote I/O modules for over 20 years. Our comprehensive range includes Ethernet, USB, serial, wireless and fieldbus I/O modules offering analog, digital and relay acquisition and control.

Speak to our friendly team today to find out how we can support your next project.

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Sealevel 520N Series

8 Optically Isolated Input/8 High-Current Form C Relay Output SeaI/O Expansion Module

From £280.00 (exc. VAT)

1 option available

Sealevel 570N Series

8 Analog Input – 8 Isolated Digital Input/8 Form C Relay Output SeaI/O Expansion Module

From £403.00 (exc. VAT)

1 option available

Sealevel 540N Series

32 Open-Collector Output SeaI/O Expansion Module

From £378.00 (exc. VAT)

1 option available

Sealevel 530N Series

16 Isolated Digital Input/16 Open-Collector Output SeaI/O Expansion Module

From £428.50 (exc. VAT)

1 option available

Sealevel 470N Series

16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output SeaI/O Expansion Module

From £465.50 (exc. VAT)

1 option available

Sealevel 463N Series

96 Channel TTL Digital Interface SeaI/O Expansion Module

From £281.00 (exc. VAT)

2 options available

Sealevel 450N Series

16 Form C Relay Output SeaI/O Expansion Module

From £266.50 (exc. VAT)

1 option available

Sealevel 430N Series

32 Optically Isolated Digital Input SeaI/O Expansion Module

From £230.00 (exc. VAT)

Our Team Is Here to Help

Get in touch with us today.

Speak to a member of our friendly team to discuss your project and find out how we can support you. Our technical sales team are ready to answer your questions.

Call: +44 (0)1782 337 800 | Email: sales@impulse-embedded.co.uk

1 option available

Sealevel 420N Series

16 Optically Isolated Digital Input/8 Form C Relay Output SeaI/O Expansion Module

From £266.50 (exc. VAT)

1 option available

Sealevel 410N Series

16 Optically Isolated Digital Input/16 Reed Relay Output SeaI/O Expansion Module

From £254.50 (exc. VAT)

3 options available

Sealevel 462N Series

96 Channel TTL DB78 Digital Interface SeaI/O Expansion Module

From £313.50 (exc. VAT)

2 options available

Sealevel 440N Series

32 Reed Relay Output SeaI/O Expansion Module – board only

From £291.00 (exc. VAT)

Frequently Asked Questions

Learn More About Expansion Remote I/O Modules

An expansion module is often the better option when the core system is already doing its job well, but the application needs more inputs or outputs than were originally planned. This can make upgrades more straightforward, reduce disruption and help avoid the cost of changing the main I/O platform just to gain extra channel capacity.

Our range includes expansion modules for digital input, digital output, analogue output, open-collector output, relay output and TTL I/O, with some models combining several signal types in one unit. That makes expansion I/O useful where one system needs to grow in a targeted way rather than adding a completely separate remote I/O architecture.

No. While expansion I/O is often used for adding more digital points, our range also includes more specialised options such as analogue and mixed-I/O modules and even 96-channel TTL digital interface modules. That makes expansion I/O a useful option for both straightforward system growth and more specialised interface requirements.

Yes. We can help you identify the right expansion module based on the signal types, channel count and switching requirements involved, whether you need additional digital points, relay outputs, TTL connectivity or a mixed-signal module. We have been supplying DAQ devices for over 30 years, and our team is available to discuss your project and help you find the right fit.