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 420 of 428 Sealevel Products items

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8012
Sealevel 8012
8 Isolated Digital Input/8 Reed Relay Output Low Profile PCI Card
8012e
Sealevel 8012e
8 Isolated Digital Input/8 Reed Relay Output Low Profile PCI Express Card
£245.00
3096
Sealevel 3096
8-Channel Isolated Digital Input/8-Channel Reed Relay Output ISA Card
3098
Sealevel 3098
32 Switched Relay Output ISA Card
3701
Sealevel 3701
48 Channel TTL Digital I/O PC/104 Module – DIO-48.PC104
8004e
Sealevel 8004e
16 Isolated Digital Input/16 Reed Relay Output PCI Express Card
£524.50
8005
1 in stock
Sealevel 8005
48-ch TTL Digital I/O PCI Card
£392.00
8006e
Sealevel 8006e
16 Isolated Digital Input (3V-13V) PCI Express Card
£441.50
3730
Sealevel 3730
16 Isolated Digital Input/16 Reed Relay Output PC/104 Module – DIO-32.104
8003e
Sealevel 8003e
16 Reed Relay Output PCI Express Card
£472.00
3094
Sealevel 3094
16 Optically Isolated Digital Input ISA Card – ISO-16
3095
Sealevel 3095
16 Reed Relay Output ISA Card
3093
Sealevel 3093
16-Channel Isolated Digital Input/16-Channel Reed Relay Output ISA Card
8225
Sealevel 8225
USB to 16 Form C Relay Output Adapter
8227
Sealevel 8227
USB to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output Adapter
8232
Sealevel 8232
USB to 8 Isolated Digital Input/8 High Current Form C Relay Output Adapter
8224
Sealevel 8224
USB to 32 Reed Relay Output Adapter
3710
Sealevel 3710
16 Reed Relay Output PC/104 Module – DIO-104.REL
3720
Sealevel 3720
16 Isolated Digital Input PC/104 Module – DIO-104.OPTO
4030
Sealevel 4030
48 Channel TTL Digital I/O ISA Card
540U
Sealevel 540U
USB Modbus RTU to 32 Open-Collector Output Adapter
570U
Sealevel 570U
USB Modbus RTU to 8 Analog Input – 8 Isolated Digital Input/8 Form C Relay Output Adapter
8111-OEM
Sealevel 8111-OEM
USB to 32 Channel TTL Digital I/O OEM Board
8111
Sealevel 8111
USB to 4 Isolated Digital Input/4 Reed Relay Output Adapter
8126
1 in stock
Sealevel 8126
USB to 32 Channel TTL Digital I/O Adapter
8203FX
Sealevel 8203FX
48 Channel TTL Digital I/O USB Adapter – SeaLINK PIO-48
8205FX
Sealevel 8205FX
96 Channel TTL Digital I/O USB Adapter – SeaLINK PIO-96
8115-OEM
Sealevel 8115-OEM
USB to 4 Form C Relay Output OEM Board
8126-KT
Sealevel 8126-KT
USB to 32 Channel TTL Digital I/O Adapter Kit
8126-OEM
Sealevel 8126-OEM
USB to 32 Channel TTL Digital I/O OEM Board
8113-KT
Sealevel 8113-KT
USB to 4 Isolated Digital Input Adapter Kit (SeaDAC Lite ISO-4 Kit)
8113-OEM
Sealevel 8113-OEM
USB to 4 Isolated Digital Input OEM Board
8113
Sealevel 8113
USB to 4 Isolated Digital Input Adapter
8114-KT
Sealevel 8114-KT
USB to 4 Reed Relay Output Adapter Kit
8112-KT
Sealevel 8112-KT
USB to 4 Isolated Digital Input/4 Form C Relay Output Adapter Kit
8112-OEM
Sealevel 8112-OEM
USB to 4 Isolated Digital Input/4 Form C Relay Output OEM Board
8206FX
Sealevel 8206FX
USB to 8 Isolated Digital Input/8 Form C Relay Output Adapter
8207FX
Sealevel 8207FX
USB to 16 Isolated Digital Input Adapter
8208FX
Sealevel 8208FX
USB to 16 Reed Relay Output Adapter
8114-OEM
Sealevel 8114-OEM
USB to 4 Reed Relay Output OEM Board
8114
Sealevel 8114
USB to 4 Reed Relay Output Adapter
8115-KT
Sealevel 8115-KT
USB to 4 Form C Relay Output Adapter Kit
8222
Sealevel 8222
USB to 16 Isolated Digital Input/8 Form C Relay Output Adapter
8223
Sealevel 8223
USB to 32 Isolated Digital Input Adapter
8209FX
Sealevel 8209FX
USB to 8 Isolated Digital Input/8 Reed Relay Output Adapter
8221
Sealevel 8221
USB to 16 Isolated Digital Input/16 Reed Relay Output Adapter
430U-OEM
Sealevel 430U-OEM
USB Modbus RTU to 32 Isolated Digital Input OEM Board
430U
Sealevel 430U
USB Modbus RTU to 32 Isolated Digital Input Adapter
440U-OEM
Sealevel 440U-OEM
USB Modbus RTU to 32 Reed Relay Output OEM Board
440U
Sealevel 440U
USB Modbus RTU to 32 Reed Relay Output Adapter
420U-OEM
Sealevel 420U-OEM
USB Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output OEM Board
420U
Sealevel 420U
USB Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter
410U-OEM
Sealevel 410U-OEM
USB Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output OEM Board
410U
Sealevel 410U
USB Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output Adapter
540U-OEM
Sealevel 540U-OEM
USB Modbus RTU to 32 Open-Collector Output OEM Board
470U-OEM
Sealevel 470U-OEM
USB Modbus RTU to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output OEM Board
470U
Sealevel 470U
USB Modbus RTU to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output Adapter
520U-OEM
Sealevel 520U-OEM
USB Modbus RTU to 8 Isolated Digital Input/8 High Current Form C Relay Output OEM Board
520U
Sealevel 520U
USB Modbus RTU to 8 Isolated Digital Input/8 High Current Form C Relay Output Adapter
450U-OEM
Sealevel 450U-OEM
USB Modbus RTU to 16 Form C Relay Output OEM Board
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Showing 420 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.