Sealevel Systems, Inc.

Sealevel Systems, Inc. was formed in 1986, designing and manufacturing communication adapters for the IBM PC and compatibles, Today, Sealevel continues to provide innovative, reliable hardware and software products to enable computer connectivity and control, manufacturing more than 300 standard I/O products with ISO 9001: 2000 registration and a standard lifetime warranty. Amongst these products are computing boxes, HMIs (industrial displays), serial connectivity products, I/O products (analog, digital, data acquisition and distributed I/O), and many different accessories.


Because the needs of customers are ever evolving, Sealevel constantly develops new products that leverage emerging technology. Their state of the art manufacturing facility is in Liberty, SC, allowing for custom design and manufacturing to suit the specific requirements of customers.

Products Include:


  • COM Express
  • Industrial Computers
  • HMI Computers
  • Embedded RISC


  • Asynchronous Serial
  • Synchronous Serial
  • MIL-STD-1553


  • Distributed I/O
  • Remote I/O
  • Digital I/O
  • Analog I/O


  • Computer Storage
  • Industrial computer memory
  • SEAI/O expansion
  • Hubs & switches
  • Relay racks & relays
  • Adapters & converters
Sealevel Slide Products