Join Sealevel for WEST 2024

Join us during WEST 2024 at Booth 3023 for the debut of four Relio R1 Rugged Industrial Computers. Announced in December 2023, these embedded computers feature the latest generation of industrial processors available. The R1 Rugged computers are the newest additions from the successful line of Relio embedded computers and synchronous servers. With diverse, versatile I/O communication including RS-232, RS-485, CAN, Wi-Fi, and Ethernet, the R1 Rugged Industrial Computers have extreme rugged enclosures and intentional thermal management. In addition to the Relio R1 computers, Sealevel team members will showcase select products targeted at meeting the needs of evolving sea services platforms and networks.

Download Military & Aerospace Brochure

Solutions for Today’s – and Tomorrow’s Global Security Challenges

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

COM Express Compact Type 6 Evaluation Board

Compact COM Express Carrier Board, Type 6

Read More

Rugged SuperSpeed 7-Port USB 3.1 Hub

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

Read More


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

Read More

HazPAC 10 Rugged Panel PC 15″

HazPAC 10 15" Rugged Panel PC Touchscreen

Read More

Ultra 530.LPCIe

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

Read More


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

Read More

Relio R2 Synchronous Serial Server

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

Read More


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

Read More

Relio R1

Relio R1 Industrial Computer - Compact, Rugged, and Configurable

Read More

Rugged SuperSpeed 4-Port USB 3.1 Hub

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

Read More

A Sealevel Story About Going to Infinity: Military & Aerospace

This is the story of a specialty military communications provider… and the team that helped them reach new heights. This company was already established worldwide as a leading provider of small-footprint, high-performance tactical communications. But this is a field where rapid advancement and adaptation are critical – and they needed a company that could help them continually stay at the top of the pack.

Play Video

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.