350+ Critical Communications Solutions in One Box

A Sealevel Blackbox can be an industrial computer, IoT edge device, PCIe or PCI card, Ethernet serial server, USB serial adapter – or any one of our 350+ critical communications solutions.

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By Land and Sea: Ground Control for the US Navy

The U.S. Navy’s arsenal includes a jet-powered, long-range cruise missile: an aerospace prime contractor contacted Sealevel for serial communications connectivity solutions.

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Lifetime Warranty.
Longterm Availability.

We offer over 350 core products, available in nearly every configuration imaginable.

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Monitor, control and improve real-world processes.

Sealevel announces the release of SeaCloud 2.0, the latest version of our secure, robust, Industrial Internet of Things software platform. 

Join the IoT Revolution

Thrives in rugged environments. Lives to test limits.

Yes, this is a tardigrade. And it’s also every product Sealevel designs and manufactures. Resilient. Reliable. Up for the challenge.

Rugged Computing & Serial

Big Picture Thinking

Whether your assets work in the most extreme environments or stay at a desk, we’ve got you covered. Sealevel engineers design computing solutions that excel across industries.

Defense

We've exceeded the expectations of
every major US and Allied nations military contractor.
We'll do the same for you.

Energy

What’s your flavor?
Oil, gas, electrical, solar, wind?
We’ve got the scoop on energy.

IIoT Integrators

Predictive maintenance.
Efficient operations.
New revenue streams.
Check.

Industrial Automation

We didn't invent
industrial automation.
But we might as well have.

Monitoring

How many senses would a sensor sense
if a sensor was powered by Sealevel?
All of them.

Public Safety

Connectivity solutions
where they matter most.
Is fast fast enough?

Smart Cities

Lights. Cars. Cities.
They're all getting smarter.
Shouldn't you?

Transportation

Ready to go further with your
transportation solutions?
We are.

Creative Doers, Serious Business.

Welcome to Sealevel Systems, Inc.

Since 1986, we’ve brought control to the user with our innovative I/O solutions that enable computer connectivity. As our product families expand, responsive thinking and creative development continue to drive our company. From engineering design to production and support, Sealevel ensures client satisfaction with precision-made technology and high-quality services.

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Featured Products

See Product Details
Ethernet Modbus TCP to 8 Isolated Inputs / 8 High-Current Form C Relay Outputs
USB to 4 Optically Isolated Inputs / 4 Form C Relay Outputs Digital Interface Adapter
LTE Cellular to 2 Form C Relays, 4 Digital Inputs, 2 A/D Inputs and 1-Wire Bus, SeaConnect Multifunction I/O Edge Module, Powered by SeaCloud

Latest News & Insights

March 2, 2021 — Industry Trends

Looking to the Future of Wi-Fi: Wi-Fi 7

Wi-Fi 6 was released in 2020, and Wi-Fi 7 (802.11be) is just around the corner with expected release in 2024. Wi-Fi 6 implements a number…

February 24, 2021 — Industry Trends

The Convergence of OT & IT Cybersecurity

Until recent decades, Operational Technology (OT), which involves the monitoring and controlling of physical machinery and equipment, was manually managed by human workers. As Information…