Join Sealevel for WEST 2022

Join us during WEST 2022 at Booth 3014 for a chance to win a Gili Paddle Board, demonstrations of our newest HazPAC 10 Rugged Panel PC and the latest in synchronous serial communications.

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Critical Communications Computing & I/O for Sea, Land and Air –
Challenge Accepted.

Sealevel reinvented the industrial I/O and computing industry with the first RS-422/485 communication adapter for the IBM PC. Since 1986, Sealevel has continued to redefine design, engineering and manufacturing for industrial computers, synchronous serial, Ethernet serial servers, and IoT hardware and software.

We are committed to a first-in-industry lifetime warranty on I/O and long-term availability of all products, beyond the life of your mission.

Sealevel Systems, Inc. is the industry leader in providing COTS and full custom hardware and software to wide-ranging industry leaders like bioMerieux, GE Aerospace, L3 Harris, PeriGen and Wi-Tronix, as well as every major US and Allied nations military contractor including Northrop Gruman, Raytheon, Boeing and NAVWAR.

Featured Products

Rugged SuperSpeed 7-Port USB 3.1 Hub

Rugged SuperSpeed 7-Port USB 3.1 Hub with Battery Charging Downstream…

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ACB-MP.PCIe

Low Profile PCI Express 1-Port RS-232, RS-422, RS-485, RS-530, RS-530A,…

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Ultra 530.LPCIe

Low Profile PCI Express 1-Port RS-232, RS-422, RS-485, RS-530 Serial…

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ACB-MP+4.PCIe

PCI Express 4-Port RS-232, RS-422, RS-485, RS-530, RS-530A, V.35 Synchronous…

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Relio R2 Synchronous Serial Server

Relio R2 4-Port Synchronous Serial Server - Configurable Solid-State Industrial…

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ACC-188

ACC-188 USB Synchronous Serial Radio Adapter with Quick Disconnect Cable…

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Relio R1

Relio R1 Industrial Computer - Compact, Rugged, and Configurable

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Rugged SuperSpeed 4-Port USB 3.1 Hub

Rugged SuperSpeed 4-Port USB 3.1 Hub with Battery Charging Downstream…

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Bring It On

Sealevel was founded in 1986 with a commitment to providing mission critical I/O and computing solutions. Today we’re proud to say that our products go all over the world. But it all starts in Liberty, South Carolina.

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Don’t see what you are looking for?
We Can Build It.

From wide-temperature industrial computers, to I/O intensive fetal monitoring systems, our team continues to develop solutions for unique problems across industries and platforms.