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 360 of 428 Sealevel Products items

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4103
Sealevel 4103
1 Port Isolated RS-232/422/485 Ethernet Serial Device Server
4401
Sealevel 4401
4 Port RS-232 Ethernet Serial Device Server
4402
Sealevel 4402
4 Port RS-422/485 Ethernet Serial Device Server
CA246-ROHS
Sealevel CA246-ROHS
213 CAT5 Patch Cable: Blue
CA247-ROHS
Sealevel CA247-ROHS
300cm CAT5 Patch Cable Blue
CA251-ROHS
Sealevel CA251-ROHS
213cm CAT5 Crossover Cable Yellow
TR108-ROHS
Sealevel TR108-ROHS
36W Desktop Power Supply
TR106-ROHS
Sealevel TR106-ROHS
6W UK Plugtop Power Supply
TBRJ45-KT-ROHS
Sealevel TBRJ45-KT-ROHS
Terminal Block Kit: RJ45 to 9 Screw Terminals
TB34-8-ROHS
Sealevel TB34-8-ROHS
8x Terminal Block - DB9 Female to 5 Screw Terminals (RS-422/485)
TB34-4-ROHS
Sealevel TB34-4-ROHS
4x Terminal Block - DB9 Female to 5 Screw Terminals (RS-422/485)
TB34-2-ROHS
Sealevel TB34-2-ROHS
2x Terminal Block - DB9 Female to 5 Screw Terminals (RS-422/485)
TB10-ROHS
Sealevel TB10-ROHS
Terminal Block Kit: IDC40 to 4x DB9 Male Connectors
TB08-KT-ROHS
Sealevel TB08-KT-ROHS
Terminal Block Kit: HD44 Male to 28 Screw Terminals
TB07-KT-ROHS
Sealevel TB07-KT-ROHS
Terminal Block Kit: 50 Pin Header (IDC Ribbon Cable) to Screw Terminals
TB06-ROHS
Sealevel TB06-ROHS
Terminal Block: Dual DB9 Female to 18 Screw Terminals
TB05-ROHS
Sealevel TB05-ROHS
Terminal Block: DB9 Female to 9 Screw Terminals
PS105-ROHS
Sealevel PS105-ROHS
165W
Relio R1
Sealevel Relio R1
Intel Bay Trail Atom E3800 Series Compact Fanless Industrial Computer
9065
Sealevel 9065
ACC-188 USB Synchronous Serial Radio Adapter
9064
Sealevel 9064
ACC-188 PCMCIA Synchronous Serial Radio Adapter
8115
1 in stock
Sealevel 8115
USB to 4 Form C Relay Output Adapter
3588
Sealevel 3588
8 Port RS-485 PC/104 Serial Card
5102
Sealevel 5102
1 Port RS-232/422/485/530/530A/V.35 Low Profile PCI Synchronous Serial Card
5102e
Sealevel 5102e
1 Port RS-232/422/485/530/530A/V.35 Low Profile PCI Express Synchronous Serial Card
£534.00
3512
Sealevel 3512
1 Port RS-232/422/485/530/530A/V.35 PC/104 Synchronous Serial Card
3514
Sealevel 3514
1 Port RS-232/422/485/530/530A/V.35 PC/104+ Synchronous Serial Card
3540
Sealevel 3540
4 Port RS-232/422/485 PC/104 Serial Card
3541-KT
Sealevel 3541-KT
4 Port RS-232/422/485 PC/104 Serial Card Kit (C4.104-ULTRA Kit)
7204e
Sealevel 7204e
2 Port RS-422/485 Low Profile PCI Express Asynchronous Serial Card
7205
Sealevel 7205
2 Port RS-232/422/485 Low Profile PCI Serial Card
£674.50
7205ec
Sealevel 7205ec
2 Port RS-232/422/485 Low Profile PCI Express Asynchronous Serial Card
£253.00
7402e
Sealevel 7402e
4 Port RS-422/485 Low Profile PCI Express Asynchronous Serial Card
7406e
Sealevel 7406e
4 Port RS-232 Low Profile PCI Express Asynchronous Serial Card
7406
Sealevel 7406
4 Port RS-232 Low Profile PCI Serial Card
£481.50
7802ec
Sealevel 7802ec
8 Port RS-422/485 Low Profile PCI Express Asynchronous Serial Card
£415.50
5402e
Sealevel 5402e
4 Port RS-232/422/485/530/530A/V.35 PCI Express Synchronous Serial Card
£1,473.00
7104
Sealevel 7104
1 Port RS-232 Low Profile PCI Serial Card
£445.00
7106
Sealevel 7106
1 Port RS-232/422/485/530 Low Profile PCI Serial Card
£437.00
5103
Sealevel 5103
1 Port RS-232 Low Profile PCI Synchronous Serial Card
5103e
Sealevel 5103e
1 Port RS-232 Low Profile PCI Express Synchronous Serial Card
£453.50
5104
Sealevel 5104
1 Port RS-232/422/485/530/530A/V.35 Low Profile PCI Synchronous Serial Card
7201
Sealevel 7201
2 Port RS-232/422/485 PCI Serial Card
7202
Sealevel 7202
2 Port RS-232 PCI Serial Card
7203e
Sealevel 7203e
2 Port RS-232/422/485 Isolated PCI Express Asynchronous Serial Card
£205.00
7106e
Sealevel 7106e
1 Port RS-232/422/485/530 Low Profile PCI Express Asynchronous Serial Card
£229.00
7108
1 in stock
Sealevel 7108
1 Port RS-232/422/485 Isolated Low Profile PCI Serial Card
£636.00
5104e
Sealevel 5104e
1 Port RS-232/422/485/530/530A/V.35 Low Profile PCI Express Synchronous Serial Card
£584.50
5402
Sealevel 5402
4 Port RS-232/422/485/530/530/V.35 Synchronous Serial PCI Card
£1,161.50
7161
Sealevel 7161
16 Port RS-232 PCI Serial Card
7161e
Sealevel 7161e
16 Port RS-232 PCI Express Asynchronous Serial Card
7204
Sealevel 7204
2 Port RS-422/485 PCI Serial Card
7803
Sealevel 7803
8 Port RS-232 Low Profile PCI Serial Card
7804
Sealevel 7804
8 Port RS-232/422/485 PCI Serial Card
7404e
Sealevel 7404e
4 Port RS-232/422/485 PCI Express Asynchronous Serial Card
8112
Sealevel 8112
USB to 4 Isolated Digital Input/4 Form C Relay Output Adapter
7804e
Sealevel 7804e
8 Port RS-232/422/485 PCI Express Asynchronous Serial Card
530U
Sealevel 530U
USB Modbus RTU to 16 Isolated Digital Input/16 Open-Collector Output Adapter
8018
Sealevel 8018
24 Channel TTL Digital I/O Low Profile PCI Card
8006He
Sealevel 8006He
16 Isolated Digital Input (10V-30V) PCI Express Card
£410.00
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Showing 360 of 428

What Is Sealevel’s Specialty?
Sealevel focus on serial and I/O expansion solutions, including USB-to-serial adaptors, digital I/O modules and embedded control systems. Their designs are trusted where reliable connectivity is required across industrial and military sectors.

Why Choose Sealevel Hardware?
With extensive experience in serial communications, Sealevel products provide the robust connectivity needed to extend the life of legacy equipment. Many models also meet MIL-STD specifications for defence projects.

Why Source in the UK Through Impulse?
We deliver Sealevel hardware to our UK customers with technical guidance and lifecycle support, ensuring integration is seamless and supply is dependable across long-term projects.