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 240 of 428 Sealevel Products items

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641U
Sealevel 641U
4 Port RS-232 (RJ45) Serial to USB Adapter
PS106-ROHS
Sealevel PS106-ROHS
75WIndustrial DIN-Rail Power Supply
PS103-ROHS
Sealevel PS103-ROHS
60W Industrial DIN-rail Power Supply
PS102-ROHS
Sealevel PS102-ROHS
15W Industrial DIN-rail Power Supply
PS101-ROHS
Sealevel PS101-ROHS
7.5W Industrial DIN-rail Power Supply
KT131
Sealevel KT131
Flush Mounting Bracket Kit
KT130
Sealevel KT130
SeaI/O and Relio R1000 Side Mount Bracket
KT125
Sealevel KT125
Universal Mounting Bracket (VESA) - for SeaI/O, Relio R1000 Systems
KT123
Sealevel KT123
Flush Mount Bracket Kit - for SeaI/O, Relio R1000 Systems
KT122
Sealevel KT122
Expansion and Strap Kit - for SeaI/O, Relio R1100 Systems
IN5S
Sealevel IN5S
Single Point Discrete AC/DC Input Module
IB5S
Sealevel IB5S
Single Point Discrete 24V DC Input Module
IB5Q
Sealevel IB5Q
Quad Solid State Relay: DC Input
IA5S
Sealevel IA5S
Single Point Discrete 120V AC/DC Input Module
IA5Q
Sealevel IA5Q
Quad Solid State Relay: AC Input
HD104
Sealevel HD104
PC/104 to 2.5" Hard Disk Drive Adapter
TB04-ROHS
Sealevel TB04-ROHS
Terminal Block: DB25 Female to 25 Screw Terminals
TB04-KT-ROHS
Sealevel TB04-KT-ROHS
Terminal Block Kit: DB25 Female to 25 Screw Terminals
TB02-KT-ROHS
Sealevel TB02-KT-ROHS
Terminal Block Kit: DB37 Male and DB37 Female to 37 Screw Terminals
TB-SP9-KT
Sealevel TB-SP9-KT
Terminal Blocks: SeaI/O Spring Clamp Upgrade Kit
TB-SP06-10-ROHS
Sealevel TB-SP06-10-ROHS
Terminal Blocks: 6 Position Spring Clamp (10 Pack)
TB-SP04-10-ROHS
Sealevel TB-SP04-10-ROHS
Terminal Blocks: 4 Position Spring Clamp (10 Pack)
TB-SC9-KT-ROHS
Sealevel TB-SC9-KT-ROHS
Terminal Blocks: SeaI/O Screw Terminal Replacement Kit
TB-SC04-10-ROHS
Sealevel TB-SC04-10-ROHS
Terminal Blocks: 4 Position Screw Terminal (10 Pack)
TA01-ROHS
Sealevel TA01-ROHS
Terminal Block: 50-Pin Header - Relay Rack Simulation Module
SS-DB9-ROHS
Sealevel SS-DB9-ROHS
DB9 Female to DB9 Male - Serial Surge Suppressor
SS-DB25-ROHS
Sealevel SS-DB25-ROHS
DB25 Female to DB25 Male - Serial Surge Suppressor
6520-ROHS
Sealevel 6520-ROHS
SeaRAQ 8x Channel Isolated 4-20 mA Current Loop Transmitter Outputs Expansion Module
6512-ROHS
Sealevel 6512-ROHS
SeaRAQ 6x Isolated Thermocouple Inputs (Type E, J, or K) Expansion Module
6511-ROHS
Sealevel 6511-ROHS
SeaRAQ 6x Isolated RTD Analog Inputs Expansion Module
6510-ROHS
Sealevel 6510-ROHS
SeaRAQ 8x Channel-to-Channel Isolated A/D Inputs Expansion Module
4220-ROHS
Sealevel 4220-ROHS
2-Port Ethernet Surge Suppressor
RK2U
Sealevel RK2U
2U 19" Rack Tray
RK1U
Sealevel RK1U
1U 19"; Rack Tray
RJ9S8-ROHS
Sealevel RJ9S8-ROHS
DB9 Female to RJ45 Modular Adapter
RJ9P8-ROHS
Sealevel RJ9P8-ROHS
DB9 Male to RJ45 Modular Adapter
RJ25S8-ROHS
Sealevel RJ25S8-ROHS
DB25 Female to RJ45 Modular Adapter
RJ25S8-2-ROHS
Sealevel RJ25S8-2-ROHS
DB25 Female to (2) RJ45 Modular Adapter
RJ25P8-ROHS
Sealevel RJ25P8-ROHS
DB25 Male to RJ45 Modular Adapter
PH104-ROHS
Sealevel PH104-ROHS
PC/104 Multipurpose Adapter
PB24HS
Sealevel PB24HS
Discrete 24-Position Relay Rack
PB24HQ
Sealevel PB24HQ
Quad 6-Position 24-Channel Relay Rack
PB16HS
Sealevel PB16HS
Discrete 16-Position Relay Rack
OB5S
Sealevel OB5S
Single Point Discrete 24V DC Output Module
OB5Q
Sealevel OB5Q
Quad Solid State Relay: DC Output
OA5S
Sealevel OA5S
Single Point Discrete 120V AC Output Module
OA5Q
Sealevel OA5Q
Quad Solid State Relay: AC Output
CA143-ROHS
Sealevel CA143-ROHS
91cm DB37F to 4x DB9M Cable
CA140-ROHS
Sealevel CA140-ROHS
DB25F to DB9M RS-232 Converter
CA127-ROHS
Sealevel CA127-ROHS
182cm DB9F to DB9M Extension Cable
CA118-ROHS
Sealevel CA118-ROHS
20cm 26-Pin IDC Ribbon to DB25M Cable
CA112-ROHS
Sealevel CA112-ROHS
182cm DB37M to DB37F Extension Cable
CA110-ROHS
Sealevel CA110-ROHS
15cm 40-Pin IDC Ribbon Cable to DB37M
CA107-ROHS
Sealevel CA107-ROHS
25cm DB25F RS-530 to DB37M RS-449 DTE Cable
CA104-ROHS
Sealevel CA104-ROHS
182cm DB25F to DB25M Extension Cable
8521-ROHS
Sealevel 8521-ROHS
SeaRAQ 8x Isolated Form A Relay Outputs Expansion Module
8520-ROHS
Sealevel 8520-ROHS
SeaRAQ 16x Isolated Form A Relay Outputs Expansion Module
8511-ROHS
Sealevel 8511-ROHS
SeaRAQ 16x Isolated Digital Inputs (0V to 132V AC) Expansion Module
8510-ROHS
Sealevel 8510-ROHS
SeaRAQ 16x Isolated Digital Inputs (3V to 30V DC) Expansion Module
DR103
Sealevel DR103
DIN Rail Mounting Clips
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Showing 240 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.