Please note that we will be closed for the holiday period starting from 24th December, and will reopen on 2nd January 2026. Our last shipping dates to customers this year will be - UK Mainland: 22/12/2025. Highlands/2-day carriage: 18/12/2025. FedEx Priority: 16/12/2025. FedEx Economy: 15/12/2025.

Sealevel Serial, I/O, and Embedded Computing Solutions

We supply Sealevel Systems' high-reliability serial, digital I/O, and embedded computing products built for long-term operation in harsh and highly regulated environments.

Their range includes PCIe and PCI serial cards, Ethernet-to-serial devices, industrial I/O modules, and fanless embedded computers. Built for use in military, medical, and industrial environments, Sealevel products are known for rock-solid performance, extended lifecycle support, and compliance with strict operational standards.

Explore our Sealevel product range or get in touch for specialist advice.

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Sealevel Products

Showing 16 of 16 Sealevel Products items

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  • Serial Interface
4803
1 option available
Sealevel 4803 Series
8 Port RS-232/422/485 Ethernet Serial Device Server
4802
2 options available
Sealevel 4802 Series
8 Port RS-422/485 Ethernet Serial Device Server
4801
1 option available
Sealevel 4801 Series
8 Port RS-232 Ethernet Serial Device Server
4203
1 option available
Sealevel 4203 Series
2 Port RS-232/422/485 Ethernet Serial Device Server
4202
2 options available
Sealevel 4202 Series
2 Port RS-422/485 Ethernet Serial Device Server,
4201
1 option available
Sealevel 4201 Series
2 Port RS-232 Ethernet Serial Device Server
4163
1 option available
Sealevel 4163 Series
16 Port RS-232/422/485 Ethernet Serial Device Server
4162
1 option available
Sealevel 4162 Series
16 Port RS-422/485 Ethernet Serial Device Server
4161
1 option available
Sealevel 4161 Series
16 Port RS-232 Ethernet Serial Device Server
4104
1 option available
Sealevel 4104 Series
1 Port RS-232/422/485 Ethernet Serial Device Server
4103
1 option available
Sealevel 4103 Series
1 Port Isolated RS-232/422/485 Ethernet Serial Device Server
4102
2 options available
Sealevel 4102 Series
1 Port RS-422/485 Ethernet Serial Device Server
4101
1 option available
Sealevel 4101 Series
1 Port RS-232 Ethernet Serial Device Server
4403
1 option available
Sealevel 4403 Series
4 Port RS-232/422/485 Ethernet Serial Device Server
4402
2 options available
Sealevel 4402 Series
4 Port RS-422/485 Ethernet Serial Device Server
4401
1 option available
Sealevel 4401 Series
4 Port RS-232 Ethernet Serial Device Server