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Sealevel industrial computers and HMIs are designed for I/O intensive applications where ruggedness, reliability and configurability are a must.

Sealevel COM Express Solutions

COM Express is a widely supported implementation of Computer on Module (COM) design. The COM Express architecture reduces the complexity, cost and time required for custom computer system design by combining the processing, memory, video, Ethernet and USB functionality in a small, highly-integrated module. COM Express modules install on a carrier board that provides the application specific I/O and external connectors best suited for the system requirements.
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Sealevel Industrial Computers

Designed for OEM applications where ruggedness is a must, the Relio™ family of embedded I/O servers combines the reliability of a PLC with the configurability of an industrial computer. Relio systems require no fans or other rotating parts. Your OS and application software run from solid-state disk, eliminating rotating hard drives and resulting in true solid-state operation. Choose from a variety of form factors and processor options, all offering long-term availability and superior life cycle management.
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Sealevel Touch Panel Computers and Panel PCs

Combine computing, I/O and operator interface requirements with our rugged SeaPAC™ and HazPAC™ touch panel computers. The panel PC systems are designed to operate over wide operating temperatures without fans or other moving parts for unmatched reliability. Choose from a variety of touchscreen or flat panel display sizes. For more details, contact one of our sales representatives or visit the Custom Capabilities section of our website.
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Sealevel Embedded RISC Computers

The R9 family is an application-ready platform for your next product design. The R9 delivers RISC computing power using the latest CE 6.0 embedded software environment. The unmatched I/O features extend the capabilities beyond traditional RISC applications. The R9 is perfect for embedded applications requiring small size, wide operating temperature range, and flexible I/O connectivity.
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Sealevel asynchronous and synchronous serial interfaces are designed for high-speed applications and support RS-232, RS-422, RS-485, and RS-530 electrical interface standards.

Sealevel Asynchronous Serial Solutions

Choose from a wide range of platforms offering RS-232, RS-422/485, and RS-232/422/485 multi-interface. Sealevel SeaCOM software and a variety of test/debug utilities are included to make installation easy. All of our serial products come with a Lifetime Warranty that guarantees the performance of our components over the life of the product.
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Sealevel Synchronous Serial Solutions

Sealevel synchronous serial adapters are trusted for critical military, aerospace and commercial applications where reliable, high-speed communications are required. Choose from a variety of RS-232 or RS-232/422/485 multi-interface options using the industry-standard Zilog Z85230 Enhanced Serial Communication Controller (ESCC) or the powerful Zilog Z16C32 Integrated Universal Serial Controller (IUSC). Our robust SeaMAC device driver supports data rates to 10 Mbps and protocols including HDLC, SDLC, asynchronous, and certain configurations of monosync, bi-sync and raw modes.
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MIL-STD-1553 Serial Solutions

Sealevel's MIL-STD-1553 board-level products, IP cores and custom computer designs are specifically engineered for military, avionics and aerospace applications. Our MIL-STD-1553 products are fully DDC® compatible and can act as a replacement (2nd source) for DDC Enhanced Mini-ACE® devices.
* DDC® and Mini-ACE® are registered trademarks of Data Device Corporation, Bohemia, NY, USA. There is no affiliation between Data Device Corporation and Sital Technology, Ltd or Sealevel Systems Inc. Sealevel is the licensed partner of Sital Technologies, Kfar-Saba, Israel, for distribution in the United States of Sital MIL-STD-1553 products and IP core products.
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Sealevel's wide variety of I/O devices provide field-proven optically isolated inputs, Reed and Form C relay outputs, TTL interfaces that connect to solid-state relays, A/D, and D/A functionality.

Cloud I/O: We put the I/O in IoT™

With SeaConnect™ hardware and SeaCloud™ software you can monitor and control real-world devices from virtually anywhere with any modern web browser. Sealevel’s SeaCloud software is designed to monitor, track, analyze and control data from SeaConnect and other Sealevel I/O devices. SeaConnect hardware offers a variety of digital, analog and sensor I/O options coupled with SeaCloud's built-in event engine to trigger actions. Together, SeaCloud and SeaConnect are redefining working remotely.
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Sealevel SeaI/O & eI/O Remote I/O Modules

Create a flexible, remote I/O installation anywhere on your network with Ethernet and Wireless data acquisition modules. Or choose I/O modules that connect directly to the host using USB, RS-485 or RS-232 interfaces. eI/O modules are available in Ethernet and PoE versions, and are perfect for low-cost I/O requirements. SeaI/O modules provide powerful digital and analog I/O expansion capabilities. Multiple SeaI/O modules can be daisy-chained together using Modbus-compatible, RS-485 expansion connectors. Communicate with I/O using industry-standard Modbus protocol or via the SeaMAX API in your software application.
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Sealevel Digital I/O Solutions

Sealevel digital I/O solutions make interfacing to the real world easy. Digital I/O solutions offer options for optically isolated inputs, Reed and Form C relay outputs, and TTL interface to industry standard solid-state relay racks. Whether you choose to connect via Ethernet, USB, PCI Express, PCI or PC/104, our software drivers and wide range of terminal blocks and cabling accessories simplify installation.
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Sealevel Analog I/O Solutions

Sealevel analog I/O products provide single-ended or differential A/D inputs selectable for a variety of voltage ranges with models available that measure 4-20mA current loop. Choose Sealevel analog I/O devices with 12-bit or 16-bit A/D input resolution, 12-bit D/A output resolution, and models with digital I/O. A variety of cabling options allow easy connection to real-world signals.
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Sealevel's wide range of accessories provides one-stop shopping for all of your serial and digital I/O application requirements.

SeaISO™ USB Isolators

Sealevel USB isolators are UL Recognized and provide 4 kV of medical-grade isolation between the host control system and connected USB equipment. SeaISO isolators protect connected USB devices from harmful ground loops, damaging transients and surges commonly found in commercial, industrial and medical environments.
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Sealevel SeaRAQ™ I/O Expansion Modules

SeaRAQ I/O expansion modules provide unprecedented expansion capabilities for Sealevel Relio R3 and Relio R4 industrial computers. SeaRAQ modules support a variety of real-world analog I/O configurations such as A/D inputs, 4-20mA outputs, 0-20mA inputs, thermocouples and RTD inputs. Optically isolated inputs, relay outputs and additional serial interfaces are also available.
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SeaI/O Expansion Modules

Build a powerful SeaI/O network with up to 246 SeaI/O N-series expansion modules. Expansion modules communicate with SeaI/O base modules and Relio industrial computers via RS-485 Modbus RTU and can be stacked together or distributed throughout your facility using convenient pass-through connectors.
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Connect Sealevel devices to computers and other peripherals. High quality cables are offered in a variety of lengths, connectors and form factors. Choose USB and serial extension cables, converter cables, digital I/O ribbon cables, Ethernet cables, power cables, and Sealevel product replacement cables.
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Power Supplies

Power Sealevel devices with AC to DC power supplies available in a variety of voltages. Choose models that plug into standard wall outlets or models that mount on industry standard DIN-rail.
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Industrial Computer Storage

Upgrade Sealevel industrial computers with solid-state hard drives, SD card flash and CompactFlash memory options.
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Terminal Blocks

Break out any molded cable to screw terminals, which simplifies field wiring. Use terminal blocks for pinout conversion, testing, etc. Select terminal blocks with standard DB9, DB25, RJ45, and 50-pin IDC connectors, or specialty terminal blocks with DB37 and DB44 connectors. Kits and mounting hardware are also available.
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Adapters & Converters

Save time connecting devices with different connectors or interfaces. Choose CompactFlash adapters, RJ45 modular adapters, pinout adapters, gender converters, null modem adapters, and surge suppression adapters with DB9 and DB25 connectors.
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Relay Racks & Relays

Expand Sealevel TTL products with industry standard relay racks and solid-state relay modules. Add 8, 16, and 24 position quad and discrete relay racks to TTL devices with standard 50-pin ribbon cables.
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Mounting Hardware

Install Sealevel products in racks, on DIN rail, on walls, or under tables with a variety of mounting brackets and hardware options. Choose industry-standard rack trays and faceplates in 1U, 2U, 3U, and 4U heights.
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Hubs & Switches

Connect USB devices to a PC without opening the case. An optically isolated USB hub protects the computer from voltage spikes, power surges, and ground loops. Non-isolated four and seven port hubs add USB ports to a computer or laptop. Power your Sealevel Ethernet devices with Power over Ethernet (PoE) switches and accessories. Expand your network with Industrial and commercial grade Ethernet switches.
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Books & Reference

Expand your knowledge with The Digital I/O Handbook - A Practical Guide to Industrial Input and Output Applications. Renowned technical author Jon Titus and the President and CEO of Sealevel Systems, Tom O'Hanlan, clearly explain real-world digital input/output implementation from both a hardware and software perspective.
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Sealevel offers a variety of software solutions to meet your application requirements. Order a replacement Sealevel Software CD or purchase an operating system license. Call us to discuss other software options.
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Comprehensive Software Solutions & Support
Our full array of hardware is backed by powerful software that makes implementation easy. Each Sealevel product ships with a comprehensive software suite providing drivers, setup files, samples, and application notes. Popular operating systems are supported including Microsoft® Windows® and Linux.

Long-Term Availability
Sealevel is committed to providing long-term availability of our products. In fact, we still produce a variety of boards that date back to the 1980s. We work closely with our vendors to insure component availability and in instances that a component becomes obsolete, we strive to design a "form, fit, and function" replacement that works transparently.

Proudly Made in the USA
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