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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540N
Available to order
Sealevel 540N
32 Open-Collector Output SeaI/O Expansion Module
540S
Available to order
Sealevel 540S
RS-232 Modbus RTU to 32 Open-Collector Output Adapter
540S-OEM
Available to order
Sealevel 540S-OEM
RS-232 Modbus RTU to 32 Open-Collector Output OEM Board
540E
Available to order
Sealevel 540E
Ethernet Modbus TCP to 32 Open-Collector Output Adapter
540M-OEM
Available to order
Sealevel 540M-OEM
RS-485 Modbus RTU to 32 Open-Collector Output OEM Board
540M
Available to order
Sealevel 540M
RS-485 Modbus RTU to 32 Open-Collector Output Adapter
540E-OEM
Available to order
Sealevel 540E-OEM
Ethernet Modbus TCP to 32 Open-Collector Output OEM Board
580E
Available to order
Sealevel 580E
Ethernet Modbus TCP to 32 Isolated Dry-Contact Inputs
540W
Available to order
Sealevel 540W
Wireless 802.11b/g Modbus TCP to 32 Open-Collector Output Adapter
140PoE
Available to order
Sealevel 140PoE
Ethernet Modbus TCP to 4 Reed Relay Output Adapter
150E
Available to order
Sealevel 150E
Ethernet Modbus TCP to 4 Form C Relay Output Adapter
150PoE
Available to order
Sealevel 150PoE
Ethernet Modbus TCP to 4 Form C Relay Output Adapter
160E-OEM
Available to order
Sealevel 160E-OEM
Ethernet Modbus TCP to 32 Channel TTL Digital I/O Board
140E
Available to order
Sealevel 140E
Ethernet Modbus TCP to 4 Reed Relay Output Adapter
170PoE
Available to order
Sealevel 170PoE
PoE Modbus TCP to 8 A/D – 2 Optically Dry Contact Input – 2 Solid-State Relay Output Adapter
410E-OEM
Available to order
Sealevel 410E-OEM
Ethernet Modbus TCP to 16 Isolated Digital Input/16 Reed Relay Output OEM Board
410E
Available to order
Sealevel 410E
Ethernet Modbus TCP to 16 Isolated Digital Input/16 Reed Relay Output Adapter
410M-OEM
Available to order
Sealevel 410M-OEM
RS-485 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output OEM Board
170E-OEM
Available to order
Sealevel 170E-OEM
Ethernet Modbus TCP to 8 A/D – 2 Optically Dry Contact Input – 2 Solid-State Relay Output Board
170E
Available to order
Sealevel 170E
Ethernet Modbus TCP to 8 A/D – 2 Optically Dry Contact Input – 2 Solid-State Relay Output Adapter
170PoE-OEM
Available to order
Sealevel 170PoE-OEM
PoE Modbus TCP to 8 A/D – 2 Optically Dry Contact Input – 2 Solid-State Relay Output Board
410M
Available to order
Sealevel 410M
RS-485 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output Adapter
410N
Available to order
Sealevel 410N
16 Optically Isolated Digital Input/16 Reed Relay Output SeaI/O Expansion Module
410S-OEM
Available to order
Sealevel 410S-OEM
RS-232 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output OEM Board
110E-OEM
Available to order
Sealevel 110E-OEM
Ethernet Modbus TCP to 4 Optically Isolated Digital Input/4 Reed Relay Output Board
430W
Available to order
Sealevel 430W
Wireless 802.11b/g Modbus TCP to 32 Isolated Digital Input Adapter
410S
Available to order
Sealevel 410S
RS-232 Modbus RTU to 16 Isolated Digital Input/16 Reed Relay Output Adapter
410W
Available to order
Sealevel 410W
Wireless 802.11b/g Modbus TCP to 16 Isolated Digital Input/16 Reed Relay Output Adapter
420E-OEM
Available to order
Sealevel 420E-OEM
Ethernet Modbus TCP to 16 Isolated Digital Input/8 Form C Relay Output OEM Board
420E
Available to order
Sealevel 420E
Ethernet Modbus TCP to 16 Isolated Digital Input/8 Form C Relay Output Adapter
430E-OEM
Available to order
Sealevel 430E-OEM
Ethernet Modbus TCP to 32 Isolated Digital Input OEM Board
430E
Available to order
Sealevel 430E
Ethernet Modbus TCP to 32 Isolated Digital Input Adapter
430M-OEM
Available to order
Sealevel 430M-OEM
RS-232 Modbus RTU to 32 Isolated Digital Input OEM Board
430M
Available to order
Sealevel 430M
RS-232 Modbus RTU to 32 Isolated Digital Input Adapter
470E-OEM
Available to order
Sealevel 470E-OEM
Ethernet Modbus TCP to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output OEM Board
470E
Available to order
Sealevel 470E
Ethernet Modbus TCP to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output Adapter
470M-OEM
Available to order
Sealevel 470M-OEM
RS-485 Modbus RTU to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output OEM Board
420S-OEM
Available to order
Sealevel 420S-OEM
RS-232 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output OEM Board
420S
Available to order
Sealevel 420S
RS-232 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter
420W
Available to order
Sealevel 420W
Wireless 802.11b/g Modbus TCP to 16 Isolated Digital Input/8 Form C Relay Output Adapter
420M-OEM
Available to order
Sealevel 420M-OEM
RS-485 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output OEM Board
420M
Available to order
Sealevel 420M
RS-485 Modbus RTU to 16 Isolated Digital Input/8 Form C Relay Output Adapter
420N
Available to order
Sealevel 420N
16 Optically Isolated Digital Input/8 Form C Relay Output SeaI/O Expansion Module
430N
Available to order
Sealevel 430N
32 Optically Isolated Digital Input SeaI/O Expansion Module
430S-OEM
Available to order
Sealevel 430S-OEM
RS-232 Modbus RTU to 32 Isolated Digital Input OEM Board
430S
Available to order
Sealevel 430S
RS-232 Modbus RTU to 32 Isolated Digital Input Adapter
470S
Available to order
Sealevel 470S
RS-232 Modbus RTU to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output Adapter
110E
Available to order
Sealevel 110E
Ethernet Modbus TCP to 4 Optically Isolated Digital Input/4 Reed Relay Output Adapter
470W
Available to order
Sealevel 470W
Wireless 802.11b/g Modbus TCP to 16 Analog Input/2 Analog Output – 8 Isolated Digital Input/8 Digital Output Adapter
110PoE-OEM
Available to order
Sealevel 110PoE-OEM
PoE Modbus TCP to 4 Optically Isolated Digital Input/4 Reed Relay Output Board
520N
1 in stock
Sealevel 520N
8 Optically Isolated Input/8 High-Current Form C Relay Output SeaI/O Expansion Module
110PoE
Available to order
Sealevel 110PoE
PoE Modbus TCP to 4 Optically Isolated Digital Input/4 Reed Relay Output Adapter
520S-OEM
Available to order
Sealevel 520S-OEM
RS-232 Modbus RTU to 8 Isolated Digital Input/8 High Current Form C Relay Output OEM Board
520S
Available to order
Sealevel 520S
RS-232 Modbus RTU to 8 Isolated Digital Input/8 High Current Form C Relay Output Adapter
530M-OEM
Available to order
Sealevel 530M-OEM
RS-485 Modbus RTU to 16 Isolated Digital Input/16 Open-Collector Output OEM Board
530M
Available to order
Sealevel 530M
RS-485 Modbus RTU to 16 Isolated Digital Input/16 Open-Collector Output Adapter
530N
Available to order
Sealevel 530N
16 Isolated Digital Input/16 Open-Collector Output SeaI/O Expansion Module
120E-OEM
Available to order
Sealevel 120E-OEM
Ethernet Modbus TCP to 4 Optically Isolated Digital Input/4 Form C Relay Output Board
120E
Available to order
Sealevel 120E
Ethernet Modbus TCP to 4 Optically Isolated Digital Input/4 Form C Relay Output Adapter
570M
Available to order
Sealevel 570M
RS-485 Modbus RTU to 8 Analog Input – 8 Isolated Digital Input/8 Form C Relay Output Adapter
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Showing 360 of 428